current bounds on the number of colors: 0 -- 197

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:29:13 2012

Optimize a model with 19993 rows, 19508 columns and 78694 nonzeros
Presolve removed 25 rows and 2450 columns
Presolve time: 0.13s
Presolved: 19968 rows, 17058 columns, 76244 nonzeros
Variable types: 0 continuous, 17058 integer (17058 binary)

Root relaxation: objective 0.000000e+00, 307 iterations, 0.01 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 (307 simplex iterations) in 0.14 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 -- 98

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:29:13 2012

Optimize a model with 10095 rows, 9855 columns and 39347 nonzeros
Presolve removed 25 rows and 1225 columns
Presolve time: 0.09s
Presolved: 10070 rows, 8630 columns, 38122 nonzeros
Variable types: 0 continuous, 8630 integer (8630 binary)

Root relaxation: objective 0.000000e+00, 317 iterations, 0.01 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 (317 simplex iterations) in 0.10 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 -- 49

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:29:14 2012

Optimize a model with 5045 rows, 4930 columns and 19272 nonzeros
Presolve removed 25 rows and 600 columns
Presolve time: 0.03s
Presolved: 5020 rows, 4330 columns, 18672 nonzeros
Variable types: 0 continuous, 4330 integer (4330 binary)

Root relaxation: objective 0.000000e+00, 311 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 (311 simplex iterations) in 0.04 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 -- 24

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:29:14 2012

Optimize a model with 2621 rows, 2566 columns and 9636 nonzeros
Presolve removed 25 rows and 300 columns
Presolve time: 0.01s
Presolved: 2596 rows, 2266 columns, 9336 nonzeros
Variable types: 0 continuous, 2266 integer (2266 binary)

Root relaxation: objective 0.000000e+00, 324 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 (478 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 -- 12

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:29:14 2012

Optimize a model with 1409 rows, 1384 columns and 4818 nonzeros
Presolve removed 25 rows and 150 columns
Presolve time: 0.00s
Presolved: 1384 rows, 1234 columns, 4668 nonzeros
Variable types: 0 continuous, 1234 integer (1234 binary)

Root relaxation: objective 0.000000e+00, 297 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 (297 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 -- 6

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:29:14 2012

Optimize a model with 803 rows, 793 columns and 2409 nonzeros
Presolve removed 25 rows and 75 columns
Presolve time: 0.00s
Presolved: 778 rows, 718 columns, 2334 nonzeros
Variable types: 0 continuous, 718 integer (718 binary)

Root relaxation: objective 0.000000e+00, 325 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 (325 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 -- 3

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:29:14 2012

Optimize a model with 399 rows, 399 columns and 803 nonzeros
Presolve removed 399 rows and 399 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 -


current bounds on the number of colors: 1 -- 3

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:29:14 2012

Optimize a model with 601 rows, 596 columns and 1606 nonzeros
Presolve removed 205 rows and 234 columns
Presolve time: 0.00s
Presolved: 396 rows, 362 columns, 1188 nonzeros
Variable types: 0 continuous, 362 integer (362 binary)

Root relaxation: objective 0.000000e+00, 183 iterations, 0.00 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0    0.00000    0  157          -    0.00000     -      -    0s
     0     0 infeasible    0               -    0.10000     -      -    0s

Explored 0 nodes (613 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Model objective exceeds cutoff
Best objective -, best bound 1.000000000000e+00, gap -


optimal solution found: number of colors: 3