Build (method = -2) #dp: 46 Step-3' Graph: 15 vertices and 38 arcs (0.00s) Step-4' Graph: 7 vertices and 22 arcs (0.00s) #V4/#V3 = 0.47 #A4/#A3 = 0.58 Ready! (0.00s) Optimize a model with 17 rows, 23 columns and 59 nonzeros Presolve removed 9 rows and 9 columns Presolve time: 0.00s Presolved: 8 rows, 14 columns, 34 nonzeros Variable types: 0 continuous, 14 integer (0 binary) Found heuristic solution: objective 73.0000000 Optimize a model with 8 rows, 14 columns and 34 nonzeros Presolved: 8 rows, 14 columns, 34 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.700e+01 Factor NZ : 3.600e+01 Factor Ops : 2.040e+02 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.03292260e+02 4.73390447e+00 2.71e+01 5.55e-17 6.61e+00 0s 1 7.80316767e+01 5.63280209e+01 1.75e-01 2.22e-16 7.09e-01 0s 2 7.41517341e+01 6.69222173e+01 2.68e-03 9.19e-17 2.33e-01 0s 3 7.30713702e+01 7.25733778e+01 3.98e-05 2.22e-16 1.61e-02 0s Barrier performed 3 iterations in 0.00 seconds Objective cutoff exceeded Root relaxation: cutoff, 0 iterations, 0.00 seconds Explored 0 nodes (0 simplex iterations) in 0.00 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 7.300000000000e+01, best bound 7.300000000000e+01, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 73 Solution: 17 x [1] 8 x [2] 27 x [3] 6 x [4, 9] 4 x [5, 10] 2 x [6, 10] 3 x [7, 10] 6 x [8, 9, 10]