current bounds on the number of colors: 0 -- 125 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:16:59 2012 Optimize a model with 4899 rows, 7827 columns and 22072 nonzeros Presolve removed 35 rows and 2170 columns Presolve time: 0.06s Presolved: 4864 rows, 5657 columns, 19902 nonzeros Variable types: 0 continuous, 5657 integer (5657 binary) Root relaxation: objective 0.000000e+00, 149 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 (149 simplex iterations) in 0.07 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 -- 62 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:16:59 2012 Optimize a model with 2512 rows, 3952 columns and 11036 nonzeros Presolve removed 35 rows and 1085 columns Presolve time: 0.02s Presolved: 2477 rows, 2867 columns, 9951 nonzeros Variable types: 0 continuous, 2867 integer (2867 binary) Root relaxation: objective 0.000000e+00, 151 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 (151 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 -- 31 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:16:59 2012 Optimize a model with 1280 rows, 1952 columns and 5340 nonzeros Presolve removed 35 rows and 525 columns Presolve time: 0.01s Presolved: 1245 rows, 1427 columns, 4815 nonzeros Variable types: 0 continuous, 1427 integer (1427 binary) Root relaxation: objective 0.000000e+00, 149 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 (149 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 -- 15 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:16:59 2012 Optimize a model with 664 rows, 952 columns and 2492 nonzeros Presolve removed 35 rows and 245 columns Presolve time: 0.00s Presolved: 629 rows, 707 columns, 2247 nonzeros Variable types: 0 continuous, 707 integer (707 binary) Root relaxation: objective 0.000000e+00, 146 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 (146 simplex iterations) in 0.00 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 16:16:59 2012 Optimize a model with 356 rows, 452 columns and 1068 nonzeros Presolve removed 35 rows and 105 columns Presolve time: 0.00s Presolved: 321 rows, 347 columns, 963 nonzeros Variable types: 0 continuous, 347 integer (347 binary) Root relaxation: objective 0.000000e+00, 135 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 (135 simplex iterations) in 0.00 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 16:16:59 2012 Optimize a model with 202 rows, 202 columns and 356 nonzeros Presolve removed 202 rows and 202 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 16:16:59 2012 Optimize a model with 279 rows, 327 columns and 712 nonzeros Presolve removed 137 rows and 178 columns Presolve time: 0.00s Presolved: 142 rows, 149 columns, 426 nonzeros Variable types: 0 continuous, 149 integer (149 binary) Root relaxation: objective 0.000000e+00, 70 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 33 - 0.00000 - - 0s Explored 0 nodes (207 simplex iterations) in 0.00 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