current bounds on the number of colors: 0 -- 36

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:33 2012

Optimize a model with 396 rows, 668 columns and 1728 nonzeros
Presolve removed 13 rows and 234 columns
Presolve time: 0.00s
Presolved: 383 rows, 434 columns, 1494 nonzeros
Variable types: 0 continuous, 434 integer (434 binary)

Root relaxation: objective 0.000000e+00, 36 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 (36 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 -- 18

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:33 2012

Optimize a model with 216 rows, 344 columns and 864 nonzeros
Presolve removed 13 rows and 117 columns
Presolve time: 0.00s
Presolved: 203 rows, 227 columns, 747 nonzeros
Variable types: 0 continuous, 227 integer (227 binary)

Root relaxation: objective 0.000000e+00, 40 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 (40 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 -- 9

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:33 2012

Optimize a model with 116 rows, 164 columns and 384 nonzeros
Presolve removed 13 rows and 52 columns
Presolve time: 0.00s
Presolved: 103 rows, 112 columns, 332 nonzeros
Variable types: 0 continuous, 112 integer (112 binary)

Root relaxation: objective 0.000000e+00, 42 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 (64 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 18:19:33 2012

Optimize a model with 76 rows, 92 columns and 192 nonzeros
Presolve removed 40 rows and 55 columns
Presolve time: 0.00s
Presolved: 36 rows, 37 columns, 108 nonzeros
Variable types: 0 continuous, 37 integer (37 binary)

Root relaxation: objective 0.000000e+00, 11 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 (11 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 18:19:33 2012

Optimize a model with 56 rows, 56 columns and 96 nonzeros
Presolve removed 56 rows and 56 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