current bounds on the number of colors: 0 -- 193 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:07 2012 Optimize a model with 18625 rows, 18720 columns and 73824 nonzeros Presolve removed 23 rows and 2208 columns Presolve time: 0.12s Presolved: 18602 rows, 16512 columns, 71616 nonzeros Variable types: 0 continuous, 16512 integer (16512 binary) Root relaxation: objective 0.000000e+00, 316 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 (316 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 -- 96 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:08 2012 Optimize a model with 9409 rows, 9456 columns and 36912 nonzeros Presolve removed 23 rows and 1104 columns Presolve time: 0.09s Presolved: 9386 rows, 8352 columns, 35808 nonzeros Variable types: 0 continuous, 8352 integer (8352 binary) Root relaxation: objective 0.000000e+00, 310 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 (310 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 -- 48 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:08 2012 Optimize a model with 4801 rows, 4824 columns and 18456 nonzeros Presolve removed 23 rows and 552 columns Presolve time: 0.03s Presolved: 4778 rows, 4272 columns, 17904 nonzeros Variable types: 0 continuous, 4272 integer (4272 binary) Root relaxation: objective 0.000000e+00, 312 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 (312 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 -- 24 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:08 2012 Optimize a model with 2497 rows, 2508 columns and 9228 nonzeros Presolve removed 23 rows and 276 columns Presolve time: 0.01s Presolved: 2474 rows, 2232 columns, 8952 nonzeros Variable types: 0 continuous, 2232 integer (2232 binary) Root relaxation: objective 0.000000e+00, 304 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 (304 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 16:28:08 2012 Optimize a model with 1345 rows, 1350 columns and 4614 nonzeros Presolve removed 23 rows and 138 columns Presolve time: 0.00s Presolved: 1322 rows, 1212 columns, 4476 nonzeros Variable types: 0 continuous, 1212 integer (1212 binary) Root relaxation: objective 0.000000e+00, 288 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 (288 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 16:28:08 2012 Optimize a model with 769 rows, 771 columns and 2307 nonzeros Presolve removed 23 rows and 69 columns Presolve time: 0.00s Presolved: 746 rows, 702 columns, 2238 nonzeros Variable types: 0 continuous, 702 integer (702 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 16:28:08 2012 Optimize a model with 385 rows, 385 columns and 769 nonzeros Presolve removed 385 rows and 385 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 16:28:08 2012 Optimize a model with 577 rows, 578 columns and 1538 nonzeros Presolve removed 195 rows and 219 columns Presolve time: 0.00s Presolved: 382 rows, 359 columns, 1146 nonzeros Variable types: 0 continuous, 359 integer (359 binary) Root relaxation: objective 0.000000e+00, 191 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 0 161 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (580 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