Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:28:38 2014 Optimize a model with 2927 rows, 1483 columns and 7220 nonzeros Presolve removed 38 rows and 0 columns Presolve time: 0.12s Presolved: 2889 rows, 1483 columns, 7182 nonzeros Variable types: 1 continuous, 1482 integer (1482 binary) Found heuristic solution: objective 0.9435227 Found heuristic solution: objective 0.9263554 Found heuristic solution: objective 0.8467182 Root relaxation: objective 1.013589e-02, 1953 iterations, 0.05 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.01014 0 1344 0.84672 0.01014 98.8% - 0s H 0 0 0.5305795 0.01014 98.1% - 0s 0 0 0.01738 0 757 0.53058 0.01738 96.7% - 0s 0 0 0.12904 0 390 0.53058 0.12904 75.7% - 0s H 0 0 0.5267103 0.12904 75.5% - 0s H 0 0 0.4976260 0.12904 74.1% - 0s H 0 0 0.4837196 0.12904 73.3% - 0s 0 0 0.16323 0 336 0.48372 0.16323 66.3% - 0s H 0 0 0.4609916 0.16323 64.6% - 0s 0 0 0.18440 0 314 0.46099 0.18440 60.0% - 0s H 0 0 0.4337126 0.18440 57.5% - 0s H 0 0 0.4311252 0.18440 57.2% - 0s 0 0 0.19511 0 260 0.43113 0.19511 54.7% - 0s H 0 0 0.3695410 0.19511 47.2% - 1s H 0 0 0.3437038 0.19511 43.2% - 1s 0 2 0.30028 0 119 0.34370 0.30028 12.6% - 1s * 17 8 10 0.3435520 0.31019 9.71% 98.1 1s * 20 2 4 0.3255080 0.31445 3.40% 84.3 1s Cutting planes: Gomory: 1 Explored 23 nodes (12676 simplex iterations) in 1.12 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.255080477344e-01, best bound 3.255080477344e-01, gap 0.0%