current bounds on the number of colors: 0 -- 33

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:29 2012

Optimize a model with 433 rows, 553 columns and 1728 nonzeros
Presolve removed 8 rows and 128 columns
Presolve time: 0.00s
Presolved: 425 rows, 425 columns, 1600 nonzeros
Variable types: 0 continuous, 425 integer (425 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 -- 16

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:29 2012

Optimize a model with 233 rows, 289 columns and 864 nonzeros
Presolve removed 8 rows and 64 columns
Presolve time: 0.00s
Presolved: 225 rows, 225 columns, 800 nonzeros
Variable types: 0 continuous, 225 integer (225 binary)

Root relaxation: objective 0.000000e+00, 46 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 (46 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 -- 8

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:29 2012

Optimize a model with 133 rows, 157 columns and 432 nonzeros
Presolve removed 8 rows and 32 columns
Presolve time: 0.00s
Presolved: 125 rows, 125 columns, 400 nonzeros
Variable types: 0 continuous, 125 integer (125 binary)

Root relaxation: objective 0.000000e+00, 44 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 (44 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 -- 4

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:29 2012

Optimize a model with 83 rows, 91 columns and 216 nonzeros
Presolve removed 33 rows and 41 columns
Presolve time: 0.00s
Presolved: 50 rows, 50 columns, 150 nonzeros
Variable types: 0 continuous, 50 integer (50 binary)

Root relaxation: objective 0.000000e+00, 23 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 (23 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 Fri Dec 14 18:19:29 2012

Optimize a model with 58 rows, 58 columns and 108 nonzeros
Presolve removed 58 rows and 58 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