current bounds on the number of colors: 0 -- 155 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:20:37 2012 Optimize a model with 10011 rows, 12063 columns and 41503 nonzeros Presolve removed 28 rows and 2156 columns Presolve time: 0.11s Presolved: 9983 rows, 9907 columns, 39347 nonzeros Variable types: 0 continuous, 9907 integer (9907 binary) Root relaxation: objective 0.000000e+00, 223 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 (223 simplex iterations) in 0.12 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 -- 77 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:20:37 2012 Optimize a model with 5019 rows, 6018 columns and 20482 nonzeros Presolve removed 28 rows and 1064 columns Presolve time: 0.04s Presolved: 4991 rows, 4954 columns, 19418 nonzeros Variable types: 0 continuous, 4954 integer (4954 binary) Root relaxation: objective 0.000000e+00, 223 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 (223 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 -- 38 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:20:38 2012 Optimize a model with 2587 rows, 3073 columns and 10241 nonzeros Presolve removed 28 rows and 532 columns Presolve time: 0.01s Presolved: 2559 rows, 2541 columns, 9709 nonzeros Variable types: 0 continuous, 2541 integer (2541 binary) Root relaxation: objective 0.000000e+00, 224 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 (224 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 -- 19 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:20:38 2012 Optimize a model with 1307 rows, 1523 columns and 4851 nonzeros Presolve removed 28 rows and 252 columns Presolve time: 0.01s Presolved: 1279 rows, 1271 columns, 4599 nonzeros Variable types: 0 continuous, 1271 integer (1271 binary) Root relaxation: objective 0.000000e+00, 213 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 (213 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 -- 9 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:20:38 2012 Optimize a model with 667 rows, 748 columns and 2156 nonzeros Presolve removed 28 rows and 112 columns Presolve time: 0.00s Presolved: 639 rows, 636 columns, 2044 nonzeros Variable types: 0 continuous, 636 integer (636 binary) Root relaxation: objective 0.000000e+00, 202 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 (202 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 -- 4 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:20:38 2012 Optimize a model with 411 rows, 438 columns and 1078 nonzeros Presolve removed 161 rows and 192 columns Presolve time: 0.00s Presolved: 250 rows, 246 columns, 750 nonzeros Variable types: 0 continuous, 246 integer (246 binary) Root relaxation: objective 0.000000e+00, 122 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 0 102 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (373 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 -- 4 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:20:38 2012 Optimize a model with 539 rows, 593 columns and 1617 nonzeros Presolve removed 28 rows and 84 columns Presolve time: 0.00s Presolved: 511 rows, 509 columns, 1533 nonzeros Variable types: 0 continuous, 509 integer (509 binary) Root relaxation: objective 0.000000e+00, 217 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 (217 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