Build (method = -2) #dp: 2124 Step-3' Graph: 101 vertices and 314 arcs (0.01s) Step-4' Graph: 48 vertices and 208 arcs (0.01s) #V4/#V3 = 0.48 #A4/#A3 = 0.66 Ready! (0.01s) Optimize a model with 58 rows, 209 columns and 541 nonzeros Presolve removed 13 rows and 24 columns Presolve time: 0.00s Presolved: 45 rows, 185 columns, 497 nonzeros Variable types: 0 continuous, 185 integer (0 binary) Found heuristic solution: objective 765.0000000 Found heuristic solution: objective 371.0000000 Optimize a model with 45 rows, 185 columns and 497 nonzeros Presolved: 45 rows, 185 columns, 497 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 2.550e+02 Factor NZ : 7.070e+02 Factor Ops : 1.301e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 6.09918711e+03 -2.59246500e+04 1.69e+04 2.22e-16 3.83e+02 0s 1 1.71634556e+03 -1.09388370e+04 2.42e+03 5.55e-16 6.61e+01 0s 2 7.98123794e+02 -2.58572720e+03 1.77e+02 3.89e-16 1.02e+01 0s 3 4.22169134e+02 -3.53463004e+02 1.55e-02 4.44e-16 2.04e+00 0s 4 1.81744515e+02 -6.92387071e+01 2.73e-03 2.20e-16 6.60e-01 0s 5 1.59348399e+02 8.80817607e+01 1.47e-03 2.22e-16 1.88e-01 0s 6 1.51337420e+02 1.35339063e+02 3.32e-04 3.33e-16 4.21e-02 0s 7 1.42888533e+02 1.42578399e+02 1.35e-06 2.22e-16 8.16e-04 0s 8 1.42857174e+02 1.42856864e+02 3.61e-13 1.93e-16 8.16e-07 0s 9 1.42857143e+02 1.42857143e+02 5.09e-13 1.52e-16 8.26e-13 0s Barrier solved model in 9 iterations and 0.00 seconds Optimal objective 1.42857143e+02 Root relaxation: objective 1.428571e+02, 118 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 142.85714 0 10 371.00000 142.85714 61.5% - 0s H 0 0 143.0000000 142.85714 0.10% - 0s Explored 0 nodes (158 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.430000000000e+02, best bound 1.430000000000e+02, gap 0.0% Preprocessing time: 0.02 seconds Gurobi run time: 0.01 seconds Total run time: 0.02 seconds Objective: 143 Solution: 58 x [1, 2, 5, 6, 8, 9, 10] 2 x [1, 4, 5, 7, 7, 9, 9] 3 x [1, 5, 6, 7, 7, 7, 9] 25 x [1, 5, 6, 7, 7, 9, 9] 6 x [1, 5, 5, 7, 7, 9, 9] 13 x [2, 4, 5, 5, 6, 7, 10] 3 x [2, 2, 3, 3, 3, 6, 10] 32 x [2, 2, 3, 3, 3, 5, 9] 1 x [5, 5, 6, 7, 7, 9]