Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:27:06 2014 Optimize a model with 1379 rows, 703 columns and 3380 nonzeros Presolve removed 26 rows and 0 columns Presolve time: 0.03s Presolved: 1353 rows, 703 columns, 3354 nonzeros Variable types: 1 continuous, 702 integer (702 binary) Found heuristic solution: objective 0.6911156 Found heuristic solution: objective 0.6849279 Found heuristic solution: objective 0.5579807 Root relaxation: objective 3.035700e-02, 587 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.03036 0 344 0.55798 0.03036 94.6% - 0s H 0 0 0.5569759 0.03036 94.5% - 0s 0 0 0.03197 0 331 0.55698 0.03197 94.3% - 0s 0 0 0.25408 0 187 0.55698 0.25408 54.4% - 0s H 0 0 0.5048173 0.25408 49.7% - 0s 0 0 0.25679 0 178 0.50482 0.25679 49.1% - 0s H 0 0 0.4731033 0.25679 45.7% - 0s 0 0 0.26121 0 173 0.47310 0.26121 44.8% - 0s 0 0 0.26409 0 170 0.47310 0.26409 44.2% - 0s 0 0 0.26484 0 180 0.47310 0.26484 44.0% - 0s 0 0 0.26484 0 177 0.47310 0.26484 44.0% - 0s 0 0 0.26484 0 169 0.47310 0.26484 44.0% - 0s H 0 0 0.4423203 0.26484 40.1% - 0s H 0 0 0.4250682 0.26484 37.7% - 0s 0 2 0.26873 0 171 0.42507 0.26873 36.8% - 0s * 2 2 1 0.4107341 0.30301 26.2% 327 0s Cutting planes: Gomory: 4 MIR: 3 Explored 5 nodes (3987 simplex iterations) in 0.38 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.107340504571e-01, best bound 4.107340504571e-01, gap 0.0%