current bounds on the number of colors: 0 -- 34

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:01 2012

Optimize a model with 170 rows, 586 columns and 986 nonzeros
Presolve removed 22 rows and 374 columns
Presolve time: 0.00s
Presolved: 148 rows, 212 columns, 612 nonzeros
Variable types: 0 continuous, 212 integer (212 binary)

Root relaxation: objective 0.000000e+00, 19 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 (19 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 -- 17

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:01 2012

Optimize a model with 98 rows, 280 columns and 464 nonzeros
Presolve removed 22 rows and 176 columns
Presolve time: 0.00s
Presolved: 76 rows, 104 columns, 288 nonzeros
Variable types: 0 continuous, 104 integer (104 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 -- 8

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:01 2012

Optimize a model with 66 rows, 144 columns and 232 nonzeros
Presolve removed 22 rows and 88 columns
Presolve time: 0.00s
Presolved: 44 rows, 56 columns, 144 nonzeros
Variable types: 0 continuous, 56 integer (56 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 -- 4

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:01 2012

Optimize a model with 50 rows, 76 columns and 116 nonzeros
Presolve removed 38 rows and 62 columns
Presolve time: 0.00s
Presolved: 12 rows, 14 columns, 36 nonzeros
Variable types: 0 continuous, 14 integer (14 binary)

Root relaxation: objective 0.000000e+00, 5 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 (5 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 16:13:01 2012

Optimize a model with 42 rows, 42 columns and 58 nonzeros
Presolve removed 42 rows and 42 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