Build (method = -2) #dp: 109 Step-3' Graph: 20 vertices and 53 arcs (0.00s) Step-4' Graph: 19 vertices and 51 arcs (0.00s) #V4/#V3 = 0.95 #A4/#A3 = 0.96 Ready! (0.00s) Optimize a model with 29 rows, 52 columns and 122 nonzeros Presolve removed 19 rows and 34 columns Presolve time: 0.00s Presolved: 10 rows, 18 columns, 45 nonzeros Variable types: 0 continuous, 18 integer (0 binary) Found heuristic solution: objective 345.0000000 Optimize a model with 10 rows, 18 columns and 45 nonzeros Presolved: 10 rows, 18 columns, 45 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 2.600e+01 Factor NZ : 5.500e+01 Factor Ops : 3.850e+02 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 7.00764608e+02 -1.37190232e+03 6.08e+02 2.22e-16 1.22e+02 0s 1 3.72450896e+02 -1.32473999e+02 3.39e+00 2.22e-16 1.28e+01 0s 2 2.43987014e+02 1.36085766e+02 2.64e-01 1.11e-16 2.70e+00 0s 3 2.08303524e+02 1.96095513e+02 1.23e-02 1.39e-16 3.05e-01 0s 4 2.08020989e+02 2.07987917e+02 5.68e-14 2.22e-16 8.27e-04 0s 5 2.08000000e+02 2.08000000e+02 5.68e-14 0.00e+00 8.88e-10 0s Barrier solved model in 5 iterations and 0.00 seconds Optimal objective 2.08000000e+02 Root relaxation: objective 2.080000e+02, 14 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 208.0000000 208.00000 0.0% - 0s Explored 0 nodes (14 simplex iterations) in 0.00 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 2.080000000000e+02, best bound 2.080000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 208 Solution: 1 x [1, 2, 3] 7 x [1, 2, 3, 4, 7, 8, 10] 1 x [1, 2, 3, 5, 6, 7, 8, 9] 1 x [1, 2, 3, 5, 7, 8] 8 x [1, 2, 3, 5, 7, 8, 9] 69 x [1, 2, 3, 7, 8] 6 x [1, 2, 3, 7, 8, 10] 6 x [1, 2, 3, 10] 31 x [1, 2, 6, 7, 8, 9, 10] 3 x [1, 2, 7, 8, 10] 4 x [1, 2, 10] 16 x [2, 3, 4, 6] 55 x [2, 3, 7]