current bounds on the number of colors: 0 -- 40
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:38 2012
Optimize a model with 980 rows, 847 columns and 3620 nonzeros
Presolve removed 5 rows and 100 columns
Presolve time: 0.01s
Presolved: 975 rows, 747 columns, 3520 nonzeros
Variable types: 0 continuous, 747 integer (747 binary)
Root relaxation: objective 0.000000e+00, 75 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 (75 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 -- 20
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:38 2012
Optimize a model with 510 rows, 447 columns and 1810 nonzeros
Presolve removed 5 rows and 50 columns
Presolve time: 0.00s
Presolved: 505 rows, 397 columns, 1760 nonzeros
Variable types: 0 continuous, 397 integer (397 binary)
Root relaxation: objective 0.000000e+00, 62 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 (62 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 -- 10
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:38 2012
Optimize a model with 275 rows, 247 columns and 905 nonzeros
Presolve removed 5 rows and 25 columns
Presolve time: 0.00s
Presolved: 270 rows, 222 columns, 880 nonzeros
Variable types: 0 continuous, 222 integer (222 binary)
Root relaxation: objective 0.000000e+00, 73 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 (115 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 -- 5
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:38 2012
Optimize a model with 134 rows, 127 columns and 362 nonzeros
Presolve removed 40 rows and 45 columns
Presolve time: 0.00s
Presolved: 94 rows, 82 columns, 282 nonzeros
Variable types: 0 continuous, 82 integer (82 binary)
Root relaxation: objective 0.000000e+00, 37 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 35 - 0.00000 - - 0s
0 0 infeasible 0 - 0.10000 - - 0s
Explored 0 nodes (112 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 -
current bounds on the number of colors: 2 -- 5
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:38 2012
Optimize a model with 181 rows, 167 columns and 543 nonzeros
Presolve removed 5 rows and 15 columns
Presolve time: 0.00s
Presolved: 176 rows, 152 columns, 528 nonzeros
Variable types: 0 continuous, 152 integer (152 binary)
Root relaxation: objective 0.000000e+00, 77 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 6 - 0.00000 - - 0s
H 0 0 0.0000000 0.00000 0.0% - 0s
Explored 0 nodes (143 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%
optimal solution found: number of colors: 3