Build (method = -2) #dp: 3655 Step-3' Graph: 163 vertices and 481 arcs (0.03s) Step-4' Graph: 23 vertices and 201 arcs (0.03s) #V4/#V3 = 0.14 #A4/#A3 = 0.42 Ready! (0.03s) Optimize a model with 71 rows, 202 columns and 565 nonzeros Presolve removed 2 rows and 2 columns Presolve time: 0.00s Presolved: 69 rows, 200 columns, 561 nonzeros Variable types: 0 continuous, 200 integer (42 binary) Found heuristic solution: objective 83.0000000 Optimize a model with 69 rows, 200 columns and 561 nonzeros Presolved: 69 rows, 200 columns, 561 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 2.190e+02 Factor NZ : 6.940e+02 Factor Ops : 1.219e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 3.47466449e+02 -3.78735159e+02 8.80e+01 4.26e-02 3.93e+00 0s 1 7.97065565e+01 -1.37507781e+02 2.77e-13 2.22e-16 5.16e-01 0s 2 3.99281787e+01 1.69577600e+01 5.77e-14 1.11e-16 5.33e-02 0s 3 3.33948002e+01 3.30781673e+01 1.98e-13 1.11e-16 7.30e-04 0s 4 3.33333948e+01 3.33330782e+01 9.15e-14 1.11e-16 7.30e-07 0s 5 3.33333333e+01 3.33333333e+01 4.11e-14 3.33e-16 7.30e-13 0s Barrier solved model in 5 iterations and 0.00 seconds Optimal objective 3.33333333e+01 Root relaxation: objective 3.333333e+01, 136 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 33.33333 0 4 83.00000 33.33333 59.8% - 0s H 0 0 34.0000000 33.33333 1.96% - 0s Explored 0 nodes (169 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 3.400000000000e+01, best bound 3.400000000000e+01, gap 0.0% Preprocessing time: 0.04 seconds Gurobi run time: 0.01 seconds Total run time: 0.04 seconds Objective: 34 Solution: 3 x [38, 39, 48] 3 x [32, 45, 47] 1 x [14, 26, 47] 1 x [14, 46, 46] 2 x [3, 30, 44] 1 x [7, 7, 43] 1 x [42] 1 x [2, 4, 42] 2 x [22, 24, 41] 1 x [12, 12, 40] 1 x [14, 20, 39] 1 x [18, 18, 37] 3 x [10, 27, 36] 2 x [1, 15, 35] 2 x [17, 19, 34] 1 x [15, 33, 33] 1 x [11, 16, 32] 1 x [21, 31, 31] 1 x [28, 28, 29] 3 x [8, 23, 25] 1 x [5, 9, 13] 1 x [2, 3, 6]