Build (method = -2) #dp: 886 Step-3' Graph: 55 vertices and 154 arcs (0.00s) Step-4' Graph: 10 vertices and 64 arcs (0.00s) #V4/#V3 = 0.18 #A4/#A3 = 0.42 Ready! (0.00s) Optimize a model with 20 rows, 65 columns and 183 nonzeros Presolve removed 4 rows and 6 columns Presolve time: 0.00s Presolved: 16 rows, 59 columns, 172 nonzeros Variable types: 0 continuous, 59 integer (0 binary) Found heuristic solution: objective 999.0000000 Found heuristic solution: objective 964.0000000 Optimize a model with 16 rows, 59 columns and 172 nonzeros Presolved: 16 rows, 59 columns, 172 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 6.300e+01 Factor NZ : 1.360e+02 Factor Ops : 1.496e+03 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 3.16349171e+03 -5.89592122e+03 1.05e+03 1.11e-16 2.20e+02 0s 1 7.94242406e+02 -2.41533075e+03 5.92e+01 4.44e-16 3.17e+01 0s 2 4.10570541e+02 -1.03163943e+02 3.74e-01 8.10e-15 4.06e+00 0s 3 2.12707892e+02 1.19329861e+02 2.02e-02 7.77e-16 7.30e-01 0s 4 2.00283777e+02 1.96843098e+02 2.75e-04 4.44e-16 2.69e-02 0s 5 2.00002489e+02 1.99976713e+02 7.31e-14 3.33e-16 2.01e-04 0s 6 2.00000000e+02 2.00000000e+02 1.03e-13 1.41e-16 5.84e-10 0s Barrier solved model in 6 iterations and 0.00 seconds Optimal objective 2.00000000e+02 Root relaxation: objective 2.000000e+02, 49 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 200.0000000 200.00000 0.0% - 0s Explored 0 nodes (49 simplex iterations) in 0.00 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 2.000000000000e+02, best bound 2.000000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 200 Solution: 36 x [1, 2, 3, 4, 7] 3 x [1, 2, 5, 9, 10] 1 x [2, 5, 6, 9, 10] 17 x [1, 4, 6, 7, 9] 87 x [1, 6, 6, 7, 9] 4 x [1, 5, 7, 9, 9] 9 x [6, 7, 7, 9, 9] 43 x [5, 7, 8, 9, 9]