current bounds on the number of colors: 0 -- 141 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:18:40 2012 Optimize a model with 7701 rows, 9978 columns and 32550 nonzeros Presolve removed 32 rows and 2240 columns Presolve time: 0.10s Presolved: 7669 rows, 7738 columns, 30310 nonzeros Variable types: 0 continuous, 7738 integer (7738 binary) Root relaxation: objective 0.000000e+00, 192 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 (192 simplex iterations) in 0.11 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 -- 70 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:18:41 2012 Optimize a model with 3921 rows, 5043 columns and 16275 nonzeros Presolve removed 32 rows and 1120 columns Presolve time: 0.03s Presolved: 3889 rows, 3923 columns, 15155 nonzeros Variable types: 0 continuous, 3923 integer (3923 binary) Root relaxation: objective 0.000000e+00, 194 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 (194 simplex iterations) in 0.04 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 -- 35 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:18:41 2012 Optimize a model with 1977 rows, 2505 columns and 7905 nonzeros Presolve removed 32 rows and 544 columns Presolve time: 0.01s Presolved: 1945 rows, 1961 columns, 7361 nonzeros Variable types: 0 continuous, 1961 integer (1961 binary) Root relaxation: objective 0.000000e+00, 195 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 (288 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 -- 17 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:18:41 2012 Optimize a model with 1005 rows, 1236 columns and 3720 nonzeros Presolve removed 32 rows and 256 columns Presolve time: 0.00s Presolved: 973 rows, 980 columns, 3464 nonzeros Variable types: 0 continuous, 980 integer (980 binary) Root relaxation: objective 0.000000e+00, 187 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 (187 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 -- 8 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:18:41 2012 Optimize a model with 573 rows, 672 columns and 1860 nonzeros Presolve removed 32 rows and 128 columns Presolve time: 0.00s Presolved: 541 rows, 544 columns, 1732 nonzeros Variable types: 0 continuous, 544 integer (544 binary) Root relaxation: objective 0.000000e+00, 173 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 (173 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 16:18:41 2012 Optimize a model with 357 rows, 390 columns and 930 nonzeros Presolve removed 151 rows and 188 columns Presolve time: 0.00s Presolved: 206 rows, 202 columns, 618 nonzeros Variable types: 0 continuous, 202 integer (202 binary) Root relaxation: objective 0.000000e+00, 111 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 90 - 0.00000 - - 0s Explored 0 nodes (339 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 16:18:41 2012 Optimize a model with 465 rows, 531 columns and 1395 nonzeros Presolve removed 32 rows and 96 columns Presolve time: 0.00s Presolved: 433 rows, 435 columns, 1299 nonzeros Variable types: 0 continuous, 435 integer (435 binary) Root relaxation: objective 0.000000e+00, 171 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 (171 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