current bounds on the number of colors: 0 -- 229 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:39:41 2012 Optimize a model with 30097 rows, 26368 columns and 115710 nonzeros Presolve removed 20 rows and 2280 columns Presolve time: 0.15s Presolved: 30077 rows, 24088 columns, 113430 nonzeros Variable types: 0 continuous, 24088 integer (24088 binary) Root relaxation: objective 0.000000e+00, 392 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 (590 simplex iterations) in 0.20 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 -- 114 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:39:42 2012 Optimize a model with 15163 rows, 13315 columns and 57855 nonzeros Presolve removed 20 rows and 1140 columns Presolve time: 0.12s Presolved: 15143 rows, 12175 columns, 56715 nonzeros Variable types: 0 continuous, 12175 integer (12175 binary) Root relaxation: objective 0.000000e+00, 390 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 (596 simplex iterations) in 0.15 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 -- 57 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:39:42 2012 Optimize a model with 7565 rows, 6674 columns and 28420 nonzeros Presolve removed 20 rows and 560 columns Presolve time: 0.05s Presolved: 7545 rows, 6114 columns, 27860 nonzeros Variable types: 0 continuous, 6114 integer (6114 binary) Root relaxation: objective 0.000000e+00, 385 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 (385 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 -- 28 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:39:42 2012 Optimize a model with 3897 rows, 3468 columns and 14210 nonzeros Presolve removed 20 rows and 280 columns Presolve time: 0.02s Presolved: 3877 rows, 3188 columns, 13930 nonzeros Variable types: 0 continuous, 3188 integer (3188 binary) Root relaxation: objective 0.000000e+00, 398 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 (598 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 -- 14 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:39:42 2012 Optimize a model with 2063 rows, 1865 columns and 7105 nonzeros Presolve removed 20 rows and 140 columns Presolve time: 0.01s Presolved: 2043 rows, 1725 columns, 6965 nonzeros Variable types: 0 continuous, 1725 integer (1725 binary) Root relaxation: objective 0.000000e+00, 378 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 (378 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 16:39:42 2012 Optimize a model with 1015 rows, 949 columns and 3045 nonzeros Presolve removed 20 rows and 60 columns Presolve time: 0.00s Presolved: 995 rows, 889 columns, 2985 nonzeros Variable types: 0 continuous, 889 integer (889 binary) Root relaxation: objective 0.000000e+00, 380 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 (380 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 16:39:42 2012 Optimize a model with 491 rows, 491 columns and 1015 nonzeros Presolve removed 491 rows and 491 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 16:39:42 2012 Optimize a model with 753 rows, 720 columns and 2030 nonzeros Presolve removed 237 rows and 261 columns Presolve time: 0.00s Presolved: 516 rows, 459 columns, 1548 nonzeros Variable types: 0 continuous, 459 integer (459 binary) Root relaxation: objective 0.000000e+00, 236 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 0 201 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (759 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