current bounds on the number of colors: 0 -- 86

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:27 2012

Optimize a model with 1548 rows, 3732 columns and 8084 nonzeros
Presolve removed 33 rows and 1419 columns
Presolve time: 0.02s
Presolved: 1515 rows, 2313 columns, 6665 nonzeros
Variable types: 0 continuous, 2313 integer (2313 binary)

Root relaxation: objective 0.000000e+00, 84 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 (84 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 -- 43

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:27 2012

Optimize a model with 800 rows, 1840 columns and 3948 nonzeros
Presolve removed 33 rows and 693 columns
Presolve time: 0.01s
Presolved: 767 rows, 1147 columns, 3255 nonzeros
Variable types: 0 continuous, 1147 integer (1147 binary)

Root relaxation: objective 0.000000e+00, 84 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 (84 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 -- 21

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:27 2012

Optimize a model with 426 rows, 894 columns and 1880 nonzeros
Presolve removed 33 rows and 330 columns
Presolve time: 0.00s
Presolved: 393 rows, 564 columns, 1550 nonzeros
Variable types: 0 continuous, 564 integer (564 binary)

Root relaxation: objective 0.000000e+00, 84 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 (84 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 -- 10

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:27 2012

Optimize a model with 256 rows, 464 columns and 940 nonzeros
Presolve removed 33 rows and 165 columns
Presolve time: 0.00s
Presolved: 223 rows, 299 columns, 775 nonzeros
Variable types: 0 continuous, 299 integer (299 binary)

Root relaxation: objective 0.000000e+00, 78 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 (78 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 16:14:27 2012

Optimize a model with 154 rows, 206 columns and 376 nonzeros
Presolve removed 104 rows and 146 columns
Presolve time: 0.00s
Presolved: 50 rows, 60 columns, 150 nonzeros
Variable types: 0 continuous, 60 integer (60 binary)

Root relaxation: objective 0.000000e+00, 24 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 (24 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 16:14:27 2012

Optimize a model with 120 rows, 120 columns and 188 nonzeros
Presolve removed 120 rows and 120 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