current bounds on the number of colors: 0 -- 98

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:24:07 2012

Optimize a model with 12789 rows, 5061 columns and 42875 nonzeros
Presolve removed 1 rows and 49 columns
Presolve time: 0.09s
Presolved: 12788 rows, 5012 columns, 42826 nonzeros
Variable types: 0 continuous, 5012 integer (5012 binary)

Root relaxation: objective 0.000000e+00, 258 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 (258 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 Fri Dec 14 18:24:08 2012

Optimize a model with 6314 rows, 2611 columns and 21000 nonzeros
Presolve removed 1 rows and 24 columns
Presolve time: 0.03s
Presolved: 6313 rows, 2587 columns, 20976 nonzeros
Variable types: 0 continuous, 2587 integer (2587 binary)

Root relaxation: objective 0.000000e+00, 228 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 (382 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 Fri Dec 14 18:24:08 2012

Optimize a model with 3206 rows, 1435 columns and 10500 nonzeros
Presolve removed 1 rows and 12 columns
Presolve time: 0.01s
Presolved: 3205 rows, 1423 columns, 10488 nonzeros
Variable types: 0 continuous, 1423 integer (1423 binary)

Root relaxation: objective 0.000000e+00, 200 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 (343 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 Fri Dec 14 18:24:08 2012

Optimize a model with 1652 rows, 847 columns and 5250 nonzeros
Presolve removed 1 rows and 6 columns
Presolve time: 0.00s
Presolved: 1651 rows, 841 columns, 5244 nonzeros
Variable types: 0 continuous, 841 integer (841 binary)

Root relaxation: objective 0.000000e+00, 225 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 (372 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 Fri Dec 14 18:24:08 2012

Optimize a model with 875 rows, 553 columns and 2625 nonzeros
Presolve removed 1 rows and 3 columns
Presolve time: 0.00s
Presolved: 874 rows, 550 columns, 2622 nonzeros
Variable types: 0 continuous, 550 integer (550 binary)

Root relaxation: objective 0.000000e+00, 216 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  182          -    0.00000     -      -    0s
     0     0    0.00000    0  166          -    0.00000     -      -    0s
     0     0    0.00000    0  211          -    0.00000     -      -    0s
     0     0    0.00000    0  229          -    0.00000     -      -    0s
     0     0    0.00000    0  208          -    0.00000     -      -    0s
     0     0    0.00000    0  219          -    0.00000     -      -    0s
     0     0    0.00000    0  228          -    0.00000     -      -    0s
     0     0    0.00000    0  223          -    0.00000     -      -    0s
     0     2    0.00000    0  223          -    0.00000     -      -    0s

Cutting planes:
  Zero half: 19

Explored 5 nodes (5721 simplex iterations) in 0.33 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: 3 -- 6

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:24:08 2012

Optimize a model with 1134 rows, 651 columns and 3500 nonzeros
Presolve removed 1 rows and 4 columns
Presolve time: 0.00s
Presolved: 1133 rows, 647 columns, 3496 nonzeros
Variable types: 0 continuous, 647 integer (647 binary)

Root relaxation: objective 0.000000e+00, 257 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 (868 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%


optimal solution found: number of colors: 4