current bounds on the number of colors: 0 -- 54
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:20:00 2012
Optimize a model with 1971 rows, 1529 columns and 7209 nonzeros
Presolve removed 2 rows and 54 columns
Presolve time: 0.01s
Presolved: 1969 rows, 1475 columns, 7155 nonzeros
Variable types: 0 continuous, 1475 integer (1475 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 0.01 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 -- 27
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:20:00 2012
Optimize a model with 977 rows, 773 columns and 3471 nonzeros
Presolve removed 2 rows and 26 columns
Presolve time: 0.00s
Presolved: 975 rows, 747 columns, 3445 nonzeros
Variable types: 0 continuous, 747 integer (747 binary)
Root relaxation: objective 0.000000e+00, 105 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 (167 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 Fri Dec 14 18:20:00 2012
Optimize a model with 480 rows, 395 columns and 1602 nonzeros
Presolve removed 2 rows and 12 columns
Presolve time: 0.00s
Presolved: 478 rows, 383 columns, 1590 nonzeros
Variable types: 0 continuous, 383 integer (383 binary)
Root relaxation: objective 0.000000e+00, 95 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 (95 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 18:20:00 2012
Optimize a model with 267 rows, 233 columns and 801 nonzeros
Presolve removed 2 rows and 6 columns
Presolve time: 0.00s
Presolved: 265 rows, 227 columns, 795 nonzeros
Variable types: 0 continuous, 227 integer (227 binary)
Root relaxation: objective 0.000000e+00, 119 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 (165 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 18:20:00 2012
Optimize a model with 125 rows, 125 columns and 267 nonzeros
Presolve removed 125 rows and 125 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 18:20:00 2012
Optimize a model with 196 rows, 179 columns and 534 nonzeros
Presolve removed 56 rows and 59 columns
Presolve time: 0.00s
Presolved: 140 rows, 120 columns, 420 nonzeros
Variable types: 0 continuous, 120 integer (120 binary)
Root relaxation: objective 0.000000e+00, 56 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 50 - 0.00000 - - 0s
0 0 infeasible 0 - 0.10000 - - 0s
Explored 0 nodes (179 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