current bounds on the number of colors: 0 -- 88

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:32 2012

Optimize a model with 1584 rows, 3906 columns and 8360 nonzeros
Presolve removed 41 rows and 1804 columns
Presolve time: 0.02s
Presolved: 1543 rows, 2102 columns, 6556 nonzeros
Variable types: 0 continuous, 2102 integer (2102 binary)

Root relaxation: objective 0.000000e+00, 74 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 (74 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 -- 44

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:32 2012

Optimize a model with 836 rows, 1970 columns and 4180 nonzeros
Presolve removed 41 rows and 902 columns
Presolve time: 0.01s
Presolved: 795 rows, 1068 columns, 3278 nonzeros
Variable types: 0 continuous, 1068 integer (1068 binary)

Root relaxation: objective 0.000000e+00, 74 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 (74 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 -- 22

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:32 2012

Optimize a model with 462 rows, 1002 columns and 2090 nonzeros
Presolve removed 41 rows and 451 columns
Presolve time: 0.00s
Presolved: 421 rows, 551 columns, 1639 nonzeros
Variable types: 0 continuous, 551 integer (551 binary)

Root relaxation: objective 0.000000e+00, 75 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 (75 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 16:14:32 2012

Optimize a model with 258 rows, 474 columns and 950 nonzeros
Presolve removed 41 rows and 205 columns
Presolve time: 0.00s
Presolved: 217 rows, 269 columns, 745 nonzeros
Variable types: 0 continuous, 269 integer (269 binary)

Root relaxation: objective 0.000000e+00, 67 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 (67 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 16:14:32 2012

Optimize a model with 156 rows, 210 columns and 380 nonzeros
Presolve removed 96 rows and 141 columns
Presolve time: 0.00s
Presolved: 60 rows, 69 columns, 180 nonzeros
Variable types: 0 continuous, 69 integer (69 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 Sat Dec 15 16:14:32 2012

Optimize a model with 122 rows, 122 columns and 190 nonzeros
Presolve removed 122 rows and 122 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