Gurobi 5.6.3 (linux64) logging started Wed Oct 8 00:19:51 2014 Optimize a model with 26244 rows, 26083 columns and 103845 nonzeros Presolve time: 0.62s Presolved: 26244 rows, 26083 columns, 103845 nonzeros Variable types: 1 continuous, 26082 integer (26082 binary) Found heuristic solution: objective 1.0686139 Found heuristic solution: objective 0.9979048 Found heuristic solution: objective 0.8978152 Root relaxation: objective 9.690769e-02, 7561 iterations, 2.12 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.09691 0 1500 0.89782 0.09691 89.2% - 3s H 0 0 0.2805468 0.09691 65.5% - 3s 0 0 0.09692 0 1513 0.28055 0.09692 65.5% - 5s 0 0 0.09692 0 1506 0.28055 0.09692 65.5% - 6s H 0 0 0.2796853 0.09692 65.3% - 6s 0 0 0.09692 0 1525 0.27969 0.09692 65.3% - 6s 0 0 0.09706 0 1419 0.27969 0.09706 65.3% - 7s H 0 0 0.2298385 0.09706 57.8% - 7s 0 0 0.09713 0 1491 0.22984 0.09713 57.7% - 7s 0 2 0.09714 0 1491 0.22984 0.09714 57.7% - 39s H 1 2 0.1618538 0.09714 40.0% 888 41s 12 10 0.11260 0 1015 0.16185 0.11260 30.4% 74.0 45s H 13 9 0.1611858 0.11260 30.1% 68.3 45s H 41 27 0.1604341 0.11502 28.3% 596 46s * 65 39 27 0.1599318 0.11506 28.1% 445 46s H 122 73 0.1571082 0.11874 24.4% 317 47s * 147 72 25 0.1570649 0.12186 22.4% 296 48s * 170 76 42 0.1568173 0.12186 22.3% 261 48s * 290 67 21 0.1561218 0.12968 16.9% 197 49s Cutting planes: Gomory: 3 MIR: 45 Zero half: 4 Mod-K: 1 Explored 373 nodes (84819 simplex iterations) in 49.54 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.561218266035e-01, best bound 1.561218266035e-01, gap 0.0%