current bounds on the number of colors: 0 -- 51
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:55 2012
Optimize a model with 1951 rows, 1351 columns and 6975 nonzeros
Presolve removed 2 rows and 50 columns
Presolve time: 0.01s
Presolved: 1949 rows, 1301 columns, 6925 nonzeros
Variable types: 0 continuous, 1301 integer (1301 binary)
Root relaxation: objective 0.000000e+00, 106 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 (174 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 -- 25
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:55 2012
Optimize a model with 963 rows, 688 columns and 3348 nonzeros
Presolve removed 2 rows and 24 columns
Presolve time: 0.00s
Presolved: 961 rows, 664 columns, 3324 nonzeros
Variable types: 0 continuous, 664 integer (664 binary)
Root relaxation: objective 0.000000e+00, 99 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 (157 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 -- 12
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:55 2012
Optimize a model with 507 rows, 382 columns and 1674 nonzeros
Presolve removed 2 rows and 12 columns
Presolve time: 0.00s
Presolved: 505 rows, 370 columns, 1662 nonzeros
Variable types: 0 continuous, 370 integer (370 binary)
Root relaxation: objective 0.000000e+00, 96 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 (96 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 -- 6
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:55 2012
Optimize a model with 279 rows, 229 columns and 837 nonzeros
Presolve removed 2 rows and 6 columns
Presolve time: 0.00s
Presolved: 277 rows, 223 columns, 831 nonzeros
Variable types: 0 continuous, 223 integer (223 binary)
Root relaxation: objective 0.000000e+00, 97 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 (135 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 Fri Dec 14 18:19:55 2012
Optimize a model with 127 rows, 127 columns and 279 nonzeros
Presolve removed 127 rows and 127 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 Fri Dec 14 18:19:55 2012
Optimize a model with 203 rows, 178 columns and 558 nonzeros
Presolve removed 51 rows and 53 columns
Presolve time: 0.00s
Presolved: 152 rows, 125 columns, 456 nonzeros
Variable types: 0 continuous, 125 integer (125 binary)
Root relaxation: objective 0.000000e+00, 53 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 49 - 0.00000 - - 0s
0 0 infeasible 0 - 0.10000 - - 0s
Explored 0 nodes (190 simplex iterations) in 0.00 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