current bounds on the number of colors: 0 -- 51
Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:22 2012
Optimize a model with 501 rows, 1293 columns and 2625 nonzeros
Presolve removed 25 rows and 625 columns
Presolve time: 0.00s
Presolved: 476 rows, 668 columns, 2000 nonzeros
Variable types: 0 continuous, 668 integer (668 binary)
Root relaxation: objective 0.000000e+00, 41 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 (41 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 -- 25
Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:22 2012
Optimize a model with 267 rows, 630 columns and 1260 nonzeros
Presolve removed 25 rows and 300 columns
Presolve time: 0.00s
Presolved: 242 rows, 330 columns, 960 nonzeros
Variable types: 0 continuous, 330 integer (330 binary)
Root relaxation: objective 0.000000e+00, 45 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 (45 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 -- 12
Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:22 2012
Optimize a model with 159 rows, 324 columns and 630 nonzeros
Presolve removed 25 rows and 150 columns
Presolve time: 0.00s
Presolved: 134 rows, 174 columns, 480 nonzeros
Variable types: 0 continuous, 174 integer (174 binary)
Root relaxation: objective 0.000000e+00, 41 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 (41 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 -- 6
Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:22 2012
Optimize a model with 105 rows, 171 columns and 315 nonzeros
Presolve removed 25 rows and 75 columns
Presolve time: 0.00s
Presolved: 80 rows, 96 columns, 240 nonzeros
Variable types: 0 continuous, 96 integer (96 binary)
Root relaxation: objective 0.000000e+00, 37 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 (37 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 16:13:22 2012
Optimize a model with 69 rows, 69 columns and 105 nonzeros
Presolve removed 69 rows and 69 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 16:13:22 2012
Optimize a model with 87 rows, 120 columns and 210 nonzeros
Presolve removed 61 rows and 91 columns
Presolve time: 0.00s
Presolved: 26 rows, 29 columns, 78 nonzeros
Variable types: 0 continuous, 29 integer (29 binary)
Root relaxation: objective 0.000000e+00, 10 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 (10 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%
optimal solution found: number of colors: 2