current bounds on the number of colors: 0 -- 64

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:40 2012

Optimize a model with 896 rows, 2074 columns and 4544 nonzeros
Presolve removed 28 rows and 896 columns
Presolve time: 0.01s
Presolved: 868 rows, 1178 columns, 3648 nonzeros
Variable types: 0 continuous, 1178 integer (1178 binary)

Root relaxation: objective 0.000000e+00, 58 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 (58 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 -- 32

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:40 2012

Optimize a model with 480 rows, 1050 columns and 2272 nonzeros
Presolve removed 28 rows and 448 columns
Presolve time: 0.00s
Presolved: 452 rows, 602 columns, 1824 nonzeros
Variable types: 0 continuous, 602 integer (602 binary)

Root relaxation: objective 0.000000e+00, 59 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 (59 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 Sat Dec 15 16:13:40 2012

Optimize a model with 272 rows, 538 columns and 1136 nonzeros
Presolve removed 28 rows and 224 columns
Presolve time: 0.00s
Presolved: 244 rows, 314 columns, 912 nonzeros
Variable types: 0 continuous, 314 integer (314 binary)

Root relaxation: objective 0.000000e+00, 56 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 (56 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 Sat Dec 15 16:13:40 2012

Optimize a model with 168 rows, 282 columns and 568 nonzeros
Presolve removed 28 rows and 112 columns
Presolve time: 0.00s
Presolved: 140 rows, 170 columns, 456 nonzeros
Variable types: 0 continuous, 170 integer (170 binary)

Root relaxation: objective 0.000000e+00, 47 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 (47 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 Sat Dec 15 16:13:40 2012

Optimize a model with 116 rows, 154 columns and 284 nonzeros
Presolve removed 70 rows and 101 columns
Presolve time: 0.00s
Presolved: 46 rows, 53 columns, 138 nonzeros
Variable types: 0 continuous, 53 integer (53 binary)

Root relaxation: objective 0.000000e+00, 18 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 (18 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 16:13:40 2012

Optimize a model with 90 rows, 90 columns and 142 nonzeros
Presolve removed 90 rows and 90 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