current bounds on the number of colors: 0 -- 201 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:20 2012 Optimize a model with 19301 rows, 20291 columns and 77400 nonzeros Presolve removed 18 rows and 1800 columns Presolve time: 0.13s Presolved: 19283 rows, 18491 columns, 75600 nonzeros Variable types: 0 continuous, 18491 integer (18491 binary) Root relaxation: objective 0.000000e+00, 329 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 (329 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 -- 100 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:21 2012 Optimize a model with 9751 rows, 10241 columns and 38700 nonzeros Presolve removed 18 rows and 900 columns Presolve time: 0.09s Presolved: 9733 rows, 9341 columns, 37800 nonzeros Variable types: 0 continuous, 9341 integer (9341 binary) Root relaxation: objective 0.000000e+00, 329 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 (329 simplex iterations) in 0.10 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 -- 50 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:21 2012 Optimize a model with 4976 rows, 5216 columns and 19350 nonzeros Presolve removed 18 rows and 450 columns Presolve time: 0.03s Presolved: 4958 rows, 4766 columns, 18900 nonzeros Variable types: 0 continuous, 4766 integer (4766 binary) Root relaxation: objective 0.000000e+00, 331 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 (331 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 -- 25 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:21 2012 Optimize a model with 2493 rows, 2603 columns and 9288 nonzeros Presolve removed 18 rows and 216 columns Presolve time: 0.01s Presolved: 2475 rows, 2387 columns, 9072 nonzeros Variable types: 0 continuous, 2387 integer (2387 binary) Root relaxation: objective 0.000000e+00, 315 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 (315 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 -- 12 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:21 2012 Optimize a model with 1347 rows, 1397 columns and 4644 nonzeros Presolve removed 18 rows and 108 columns Presolve time: 0.00s Presolved: 1329 rows, 1289 columns, 4536 nonzeros Variable types: 0 continuous, 1289 integer (1289 binary) Root relaxation: objective 0.000000e+00, 317 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 (317 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 16:30:21 2012 Optimize a model with 774 rows, 794 columns and 2322 nonzeros Presolve removed 18 rows and 54 columns Presolve time: 0.00s Presolved: 756 rows, 740 columns, 2268 nonzeros Variable types: 0 continuous, 740 integer (740 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 16:30:21 2012 Optimize a model with 392 rows, 392 columns and 774 nonzeros Presolve removed 392 rows and 392 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 16:30:21 2012 Optimize a model with 583 rows, 593 columns and 1548 nonzeros Presolve removed 209 rows and 231 columns Presolve time: 0.00s Presolved: 374 rows, 362 columns, 1122 nonzeros Variable types: 0 continuous, 362 integer (362 binary) Root relaxation: objective 0.000000e+00, 203 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 0 144 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (598 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