current bounds on the number of colors: 0 -- 198 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:29:29 2012 Optimize a model with 20394 rows, 19806 columns and 80190 nonzeros Presolve removed 19 rows and 1881 columns Presolve time: 0.13s Presolved: 20375 rows, 17925 columns, 78309 nonzeros Variable types: 0 continuous, 17925 integer (17925 binary) Root relaxation: objective 0.000000e+00, 343 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 (511 simplex iterations) in 0.17 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 -- 99 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:29:30 2012 Optimize a model with 10194 rows, 9906 columns and 39690 nonzeros Presolve removed 19 rows and 931 columns Presolve time: 0.09s Presolved: 10175 rows, 8975 columns, 38759 nonzeros Variable types: 0 continuous, 8975 integer (8975 binary) Root relaxation: objective 0.000000e+00, 339 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 (502 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 -- 49 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:29:30 2012 Optimize a model with 5094 rows, 4956 columns and 19440 nonzeros Presolve removed 19 rows and 456 columns Presolve time: 0.03s Presolved: 5075 rows, 4500 columns, 18984 nonzeros Variable types: 0 continuous, 4500 integer (4500 binary) Root relaxation: objective 0.000000e+00, 341 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 (497 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 -- 24 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:29:30 2012 Optimize a model with 2646 rows, 2580 columns and 9720 nonzeros Presolve removed 19 rows and 228 columns Presolve time: 0.01s Presolved: 2627 rows, 2352 columns, 9492 nonzeros Variable types: 0 continuous, 2352 integer (2352 binary) Root relaxation: objective 0.000000e+00, 322 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 (477 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 -- 12 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:29:30 2012 Optimize a model with 1422 rows, 1392 columns and 4860 nonzeros Presolve removed 19 rows and 114 columns Presolve time: 0.01s Presolved: 1403 rows, 1278 columns, 4746 nonzeros Variable types: 0 continuous, 1278 integer (1278 binary) Root relaxation: objective 0.000000e+00, 308 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 (308 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 -- 6 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:29:30 2012 Optimize a model with 810 rows, 798 columns and 2430 nonzeros Presolve removed 19 rows and 57 columns Presolve time: 0.00s Presolved: 791 rows, 741 columns, 2373 nonzeros Variable types: 0 continuous, 741 integer (741 binary) Root relaxation: objective 0.000000e+00, 291 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 (291 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 Sat Dec 15 16:29:30 2012 Optimize a model with 402 rows, 402 columns and 810 nonzeros Presolve removed 402 rows and 402 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 16:29:30 2012 Optimize a model with 606 rows, 600 columns and 1620 nonzeros Presolve removed 206 rows and 229 columns Presolve time: 0.00s Presolved: 400 rows, 371 columns, 1200 nonzeros Variable types: 0 continuous, 371 integer (371 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 0.00000 0 171 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (624 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