current bounds on the number of colors: 0 -- 109
Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:15:44 2012
Optimize a model with 3457 rows, 5948 columns and 15930 nonzeros
Presolve removed 28 rows and 1512 columns
Presolve time: 0.04s
Presolved: 3429 rows, 4436 columns, 14418 nonzeros
Variable types: 0 continuous, 4436 integer (4436 binary)
Root relaxation: objective 0.000000e+00, 134 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 (134 simplex iterations) in 0.05 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 -- 54
Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:15:44 2012
Optimize a model with 1783 rows, 3005 columns and 7965 nonzeros
Presolve removed 28 rows and 756 columns
Presolve time: 0.01s
Presolved: 1755 rows, 2249 columns, 7209 nonzeros
Variable types: 0 continuous, 2249 integer (2249 binary)
Root relaxation: objective 0.000000e+00, 133 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 (133 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 -- 27
Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:15:44 2012
Optimize a model with 915 rows, 1479 columns and 3835 nonzeros
Presolve removed 28 rows and 364 columns
Presolve time: 0.00s
Presolved: 887 rows, 1115 columns, 3471 nonzeros
Variable types: 0 continuous, 1115 integer (1115 binary)
Root relaxation: objective 0.000000e+00, 131 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 (131 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 -- 13
Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:15:44 2012
Optimize a model with 481 rows, 716 columns and 1770 nonzeros
Presolve removed 28 rows and 168 columns
Presolve time: 0.00s
Presolved: 453 rows, 548 columns, 1602 nonzeros
Variable types: 0 continuous, 548 integer (548 binary)
Root relaxation: objective 0.000000e+00, 127 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 (127 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 Sat Dec 15 16:15:44 2012
Optimize a model with 295 rows, 389 columns and 885 nonzeros
Presolve removed 28 rows and 84 columns
Presolve time: 0.00s
Presolved: 267 rows, 305 columns, 801 nonzeros
Variable types: 0 continuous, 305 integer (305 binary)
Root relaxation: objective 0.000000e+00, 117 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 (117 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 16:15:44 2012
Optimize a model with 171 rows, 171 columns and 295 nonzeros
Presolve removed 171 rows and 171 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 16:15:44 2012
Optimize a model with 233 rows, 280 columns and 590 nonzeros
Presolve removed 129 rows and 167 columns
Presolve time: 0.00s
Presolved: 104 rows, 113 columns, 312 nonzeros
Variable types: 0 continuous, 113 integer (113 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 0.0000000 0.00000 0.0% - 0s
Explored 0 nodes (37 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: 2