current bounds on the number of colors: 0 -- 238 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:43:09 2012 Optimize a model with 34153 rows, 28607 columns and 130067 nonzeros Presolve removed 17 rows and 2023 columns Presolve time: 0.15s Presolved: 34136 rows, 26584 columns, 128044 nonzeros Variable types: 0 continuous, 26584 integer (26584 binary) Root relaxation: objective 0.000000e+00, 395 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (395 simplex iterations) in 0.18 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 119 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:43:09 2012 Optimize a model with 17053 rows, 14327 columns and 64487 nonzeros Presolve removed 17 rows and 1003 columns Presolve time: 0.12s Presolved: 17036 rows, 13324 columns, 63484 nonzeros Variable types: 0 continuous, 13324 integer (13324 binary) Root relaxation: objective 0.000000e+00, 395 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (395 simplex iterations) in 0.14 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 59 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:43:10 2012 Optimize a model with 8503 rows, 7187 columns and 31697 nonzeros Presolve removed 17 rows and 493 columns Presolve time: 0.05s Presolved: 8486 rows, 6694 columns, 31204 nonzeros Variable types: 0 continuous, 6694 integer (6694 binary) Root relaxation: objective 0.000000e+00, 393 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (393 simplex iterations) in 0.06 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 29 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:43:10 2012 Optimize a model with 4228 rows, 3617 columns and 15302 nonzeros Presolve removed 17 rows and 238 columns Presolve time: 0.02s Presolved: 4211 rows, 3379 columns, 15064 nonzeros Variable types: 0 continuous, 3379 integer (3379 binary) Root relaxation: objective 0.000000e+00, 401 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (401 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 14 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:43:10 2012 Optimize a model with 2233 rows, 1951 columns and 7651 nonzeros Presolve removed 17 rows and 119 columns Presolve time: 0.01s Presolved: 2216 rows, 1832 columns, 7532 nonzeros Variable types: 0 continuous, 1832 integer (1832 binary) Root relaxation: objective 0.000000e+00, 423 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (423 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 7 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:43:10 2012 Optimize a model with 1093 rows, 999 columns and 3279 nonzeros Presolve removed 17 rows and 51 columns Presolve time: 0.00s Presolved: 1076 rows, 948 columns, 3228 nonzeros Variable types: 0 continuous, 948 integer (948 binary) Root relaxation: objective 0.000000e+00, 453 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (614 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 3 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:43:10 2012 Optimize a model with 523 rows, 523 columns and 1093 nonzeros Presolve removed 523 rows and 523 columns Presolve time: 0.00s Explored 0 nodes (0 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Model objective exceeds cutoff Best objective -, best bound -, gap - current bounds on the number of colors: 1 -- 3 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:43:10 2012 Optimize a model with 808 rows, 761 columns and 2186 nonzeros Presolve removed 250 rows and 273 columns Presolve time: 0.00s Presolved: 558 rows, 488 columns, 1674 nonzeros Variable types: 0 continuous, 488 integer (488 binary) Root relaxation: objective 0.000000e+00, 236 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 209 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (771 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Model objective exceeds cutoff Best objective -, best bound 1.000000000000e+00, gap - optimal solution found: number of colors: 3