Build (method = -2) #dp: 70 Step-3' Graph: 17 vertices and 44 arcs (0.00s) Step-4' Graph: 10 vertices and 30 arcs (0.00s) #V4/#V3 = 0.59 #A4/#A3 = 0.68 Ready! (0.00s) Optimize a model with 20 rows, 31 columns and 77 nonzeros Presolve removed 8 rows and 8 columns Presolve time: 0.00s Presolved: 12 rows, 23 columns, 55 nonzeros Variable types: 0 continuous, 23 integer (0 binary) Found heuristic solution: objective 894.0000000 Found heuristic solution: objective 614.0000000 Optimize a model with 12 rows, 23 columns and 55 nonzeros Presolved: 12 rows, 23 columns, 55 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 3.300e+01 Factor NZ : 7.800e+01 Factor Ops : 6.500e+02 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 2.43658038e+03 -3.48147285e+03 1.36e+03 2.22e-16 2.74e+02 0s 1 1.02963404e+03 -4.42123196e+02 8.84e+01 3.05e-16 3.55e+01 0s 2 7.15049543e+02 3.62239927e+02 1.24e+01 3.77e-15 7.41e+00 0s 3 6.14810632e+02 5.92663406e+02 5.30e-02 5.00e-16 4.43e-01 0s 4 6.14003706e+02 6.13978702e+02 2.20e-13 1.11e-16 5.00e-04 0s Barrier performed 4 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 6.140000000000e+02, best bound 6.140000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 614 Solution: 8 x [1, 9] 24 x [1, 10] 23 x [2] 7 x [2, 10] 74 x [3] 67 x [3, 8, 10] 198 x [4] 21 x [4, 7] 155 x [5, 6] 37 x [5, 7]