current bounds on the number of colors: 0 -- 242 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:44:49 2012 Optimize a model with 39930 rows, 29610 columns and 148346 nonzeros Presolve removed 16 rows and 1936 columns Presolve time: 0.19s Presolved: 39914 rows, 27674 columns, 146410 nonzeros Variable types: 0 continuous, 27674 integer (27674 binary) Root relaxation: objective 0.000000e+00, 416 iterations, 0.02 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 (416 simplex iterations) in 0.23 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 -- 121 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:44:50 2012 Optimize a model with 19922 rows, 14848 columns and 73560 nonzeros Presolve removed 16 rows and 960 columns Presolve time: 0.13s Presolved: 19906 rows, 13888 columns, 72600 nonzeros Variable types: 0 continuous, 13888 integer (13888 binary) Root relaxation: objective 0.000000e+00, 416 iterations, 0.01 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 (416 simplex iterations) in 0.14 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 -- 60 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:44:50 2012 Optimize a model with 10082 rows, 7588 columns and 36780 nonzeros Presolve removed 16 rows and 480 columns Presolve time: 0.06s Presolved: 10066 rows, 7108 columns, 36300 nonzeros Variable types: 0 continuous, 7108 integer (7108 binary) Root relaxation: objective 0.000000e+00, 422 iterations, 0.01 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 (422 simplex iterations) in 0.07 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 -- 30 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:44:50 2012 Optimize a model with 5162 rows, 3958 columns and 18390 nonzeros Presolve removed 16 rows and 240 columns Presolve time: 0.02s Presolved: 5146 rows, 3718 columns, 18150 nonzeros Variable types: 0 continuous, 3718 integer (3718 binary) Root relaxation: objective 0.000000e+00, 437 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 (437 simplex iterations) in 0.03 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 -- 15 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:44:50 2012 Optimize a model with 2538 rows, 2022 columns and 8582 nonzeros Presolve removed 16 rows and 112 columns Presolve time: 0.01s Presolved: 2522 rows, 1910 columns, 8470 nonzeros Variable types: 0 continuous, 1910 integer (1910 binary) Root relaxation: objective 0.000000e+00, 435 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 (435 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 -- 7 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:44:50 2012 Optimize a model with 1226 rows, 1054 columns and 3678 nonzeros Presolve removed 16 rows and 48 columns Presolve time: 0.00s Presolved: 1210 rows, 1006 columns, 3630 nonzeros Variable types: 0 continuous, 1006 integer (1006 binary) Root relaxation: objective 0.000000e+00, 490 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 (670 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 -- 3 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:44:50 2012 Optimize a model with 570 rows, 570 columns and 1226 nonzeros Presolve removed 570 rows and 570 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 16:44:50 2012 Optimize a model with 898 rows, 812 columns and 2452 nonzeros Presolve removed 244 rows and 261 columns Presolve time: 0.00s Presolved: 654 rows, 551 columns, 1962 nonzeros Variable types: 0 continuous, 551 integer (551 binary) Root relaxation: objective 0.000000e+00, 257 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 0 224 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (859 simplex iterations) in 0.01 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