current bounds on the number of colors: 0 -- 45

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:14 2012

Optimize a model with 309 rows, 1002 columns and 1782 nonzeros
Presolve removed 27 rows and 594 columns
Presolve time: 0.00s
Presolved: 282 rows, 408 columns, 1188 nonzeros
Variable types: 0 continuous, 408 integer (408 binary)

Root relaxation: objective 0.000000e+00, 28 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 (28 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 -- 22

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:14 2012

Optimize a model with 177 rows, 507 columns and 891 nonzeros
Presolve removed 27 rows and 297 columns
Presolve time: 0.00s
Presolved: 150 rows, 210 columns, 594 nonzeros
Variable types: 0 continuous, 210 integer (210 binary)

Root relaxation: objective 0.000000e+00, 29 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 (29 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 -- 11

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:14 2012

Optimize a model with 105 rows, 237 columns and 405 nonzeros
Presolve removed 27 rows and 135 columns
Presolve time: 0.00s
Presolved: 78 rows, 102 columns, 270 nonzeros
Variable types: 0 continuous, 102 integer (102 binary)

Root relaxation: objective 0.000000e+00, 28 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 (28 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 -- 5

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:14 2012

Optimize a model with 69 rows, 102 columns and 162 nonzeros
Presolve removed 53 rows and 84 columns
Presolve time: 0.00s
Presolved: 16 rows, 18 columns, 48 nonzeros
Variable types: 0 continuous, 18 integer (18 binary)

Root relaxation: objective 0.000000e+00, 6 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 (6 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 -- 2

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:14 2012

Optimize a model with 57 rows, 57 columns and 81 nonzeros
Presolve removed 57 rows and 57 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 -


optimal solution found: number of colors: 2