current bounds on the number of colors: 0 -- 69

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:49 2012

Optimize a model with 1021 rows, 2374 columns and 5202 nonzeros
Presolve removed 30 rows and 1020 columns
Presolve time: 0.01s
Presolved: 991 rows, 1354 columns, 4182 nonzeros
Variable types: 0 continuous, 1354 integer (1354 binary)

Root relaxation: objective 0.000000e+00, 64 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 (64 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 -- 34

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:49 2012

Optimize a model with 545 rows, 1201 columns and 2601 nonzeros
Presolve removed 30 rows and 510 columns
Presolve time: 0.00s
Presolved: 515 rows, 691 columns, 2091 nonzeros
Variable types: 0 continuous, 691 integer (691 binary)

Root relaxation: objective 0.000000e+00, 64 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 (64 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 16:13:49 2012

Optimize a model with 293 rows, 580 columns and 1224 nonzeros
Presolve removed 30 rows and 240 columns
Presolve time: 0.00s
Presolved: 263 rows, 340 columns, 984 nonzeros
Variable types: 0 continuous, 340 integer (340 binary)

Root relaxation: objective 0.000000e+00, 64 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 (64 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 16:13:49 2012

Optimize a model with 181 rows, 304 columns and 612 nonzeros
Presolve removed 30 rows and 120 columns
Presolve time: 0.00s
Presolved: 151 rows, 184 columns, 492 nonzeros
Variable types: 0 continuous, 184 integer (184 binary)

Root relaxation: objective 0.000000e+00, 52 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 (52 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 16:13:49 2012

Optimize a model with 125 rows, 166 columns and 306 nonzeros
Presolve removed 83 rows and 120 columns
Presolve time: 0.00s
Presolved: 42 rows, 46 columns, 126 nonzeros
Variable types: 0 continuous, 46 integer (46 binary)

Root relaxation: objective 0.000000e+00, 16 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 (16 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 16:13:49 2012

Optimize a model with 97 rows, 97 columns and 153 nonzeros
Presolve removed 97 rows and 97 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