Build (method = -2) #dp: 1012 Step-3' Graph: 62 vertices and 174 arcs (0.00s) Step-4' Graph: 8 vertices and 66 arcs (0.00s) #V4/#V3 = 0.13 #A4/#A3 = 0.38 Ready! (0.00s) Optimize a model with 18 rows, 67 columns and 194 nonzeros Presolve removed 2 rows and 2 columns Presolve time: 0.00s Presolved: 16 rows, 65 columns, 190 nonzeros Variable types: 0 continuous, 65 integer (0 binary) Found heuristic solution: objective 999.0000000 Found heuristic solution: objective 866.0000000 Optimize a model with 16 rows, 65 columns and 190 nonzeros Presolved: 16 rows, 65 columns, 190 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 6.900e+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 3.60475568e+03 -7.69665300e+03 1.21e+03 0.00e+00 2.63e+02 0s 1 7.92750917e+02 -3.35790270e+03 5.13e+01 6.66e-16 3.57e+01 0s 2 4.25740871e+02 -1.48633219e+02 2.43e-02 2.16e-15 4.14e+00 0s 3 1.89800131e+02 3.28115736e+01 1.84e-03 4.44e-16 1.12e+00 0s 4 1.68645423e+02 1.51739579e+02 1.70e-04 3.66e-16 1.21e-01 0s 5 1.66916342e+02 1.65319329e+02 4.24e-05 5.55e-16 1.14e-02 0s 6 1.66666694e+02 1.66666578e+02 2.10e-13 5.94e-16 8.26e-07 0s 7 1.66666667e+02 1.66666667e+02 6.78e-14 3.67e-16 8.30e-13 0s Barrier solved model in 7 iterations and 0.00 seconds Optimal objective 1.66666667e+02 Root relaxation: objective 1.666667e+02, 55 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 166.66667 0 6 866.00000 166.66667 80.8% - 0s H 0 0 167.0000000 166.66667 0.20% - 0s Explored 0 nodes (62 simplex iterations) in 0.00 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.670000000000e+02, best bound 1.670000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 167 Solution: 5 x [1, 3, 4, 6, 7, 7] 82 x [1, 2, 5, 7, 8, 10] 47 x [1, 3, 3, 3, 7, 10] 11 x [2, 4, 6, 8, 9, 10] 19 x [3, 6, 7, 7, 8, 10] 2 x [2, 3, 6, 7, 9, 10] 1 x [3, 6, 7, 7]