current bounds on the number of colors: 0 -- 93

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:46 2012

Optimize a model with 1795 rows, 4315 columns and 9384 nonzeros
Presolve removed 46 rows and 2116 columns
Presolve time: 0.02s
Presolved: 1749 rows, 2199 columns, 7268 nonzeros
Variable types: 0 continuous, 2199 integer (2199 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 0.02 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 -- 46

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:46 2012

Optimize a model with 944 rows, 2176 columns and 4692 nonzeros
Presolve removed 46 rows and 1058 columns
Presolve time: 0.01s
Presolved: 898 rows, 1118 columns, 3634 nonzeros
Variable types: 0 continuous, 1118 integer (1118 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 0.01 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 -- 23

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:46 2012

Optimize a model with 500 rows, 1060 columns and 2244 nonzeros
Presolve removed 46 rows and 506 columns
Presolve time: 0.00s
Presolved: 454 rows, 554 columns, 1738 nonzeros
Variable types: 0 continuous, 554 integer (554 binary)

Root relaxation: objective 0.000000e+00, 77 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 (77 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 16:14:46 2012

Optimize a model with 278 rows, 502 columns and 1020 nonzeros
Presolve removed 46 rows and 230 columns
Presolve time: 0.00s
Presolved: 232 rows, 272 columns, 790 nonzeros
Variable types: 0 continuous, 272 integer (272 binary)

Root relaxation: objective 0.000000e+00, 66 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 (66 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 16:14:46 2012

Optimize a model with 167 rows, 223 columns and 408 nonzeros
Presolve removed 99 rows and 148 columns
Presolve time: 0.00s
Presolved: 68 rows, 75 columns, 204 nonzeros
Variable types: 0 continuous, 75 integer (75 binary)

Root relaxation: objective 0.000000e+00, 28 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 (28 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 16:14:46 2012

Optimize a model with 130 rows, 130 columns and 204 nonzeros
Presolve removed 130 rows and 130 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