current bounds on the number of colors: 0 -- 200 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:04 2012 Optimize a model with 19200 rows, 20190 columns and 77000 nonzeros Presolve removed 33 rows and 3300 columns Presolve time: 0.12s Presolved: 19167 rows, 16890 columns, 73700 nonzeros Variable types: 0 continuous, 16890 integer (16890 binary) Root relaxation: objective 0.000000e+00, 302 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 (302 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 -- 100 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:04 2012 Optimize a model with 9700 rows, 10190 columns and 38500 nonzeros Presolve removed 33 rows and 1650 columns Presolve time: 0.09s Presolved: 9667 rows, 8540 columns, 36850 nonzeros Variable types: 0 continuous, 8540 integer (8540 binary) Root relaxation: objective 0.000000e+00, 304 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 (304 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 16:30:04 2012 Optimize a model with 4950 rows, 5190 columns and 19250 nonzeros Presolve removed 33 rows and 825 columns Presolve time: 0.03s Presolved: 4917 rows, 4365 columns, 18425 nonzeros Variable types: 0 continuous, 4365 integer (4365 binary) Root relaxation: objective 0.000000e+00, 300 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 (300 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 16:30:04 2012 Optimize a model with 2480 rows, 2590 columns and 9240 nonzeros Presolve removed 33 rows and 396 columns Presolve time: 0.01s Presolved: 2447 rows, 2194 columns, 8844 nonzeros Variable types: 0 continuous, 2194 integer (2194 binary) Root relaxation: objective 0.000000e+00, 299 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 (299 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 16:30:04 2012 Optimize a model with 1340 rows, 1390 columns and 4620 nonzeros Presolve removed 33 rows and 198 columns Presolve time: 0.00s Presolved: 1307 rows, 1192 columns, 4422 nonzeros Variable types: 0 continuous, 1192 integer (1192 binary) Root relaxation: objective 0.000000e+00, 300 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 (422 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 16:30:05 2012 Optimize a model with 770 rows, 790 columns and 2310 nonzeros Presolve removed 33 rows and 99 columns Presolve time: 0.00s Presolved: 737 rows, 691 columns, 2211 nonzeros Variable types: 0 continuous, 691 integer (691 binary) Root relaxation: objective 0.000000e+00, 268 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 (268 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 16:30:05 2012 Optimize a model with 390 rows, 390 columns and 770 nonzeros Presolve removed 390 rows and 390 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 16:30:05 2012 Optimize a model with 580 rows, 590 columns and 1540 nonzeros Presolve removed 210 rows and 248 columns Presolve time: 0.00s Presolved: 370 rows, 342 columns, 1110 nonzeros Variable types: 0 continuous, 342 integer (342 binary) Root relaxation: objective 0.000000e+00, 177 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 0 148 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (558 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