
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 05:16:19 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2761.37.log"
Using license file /Users/sara/gurobi.lic
Academic license - for non-commercial use only - expires 2025-05-12

Gurobi Optimizer version 11.0.1 build v11.0.1rc0 (mac64[x86] - Darwin 21.6.0 21G651)
Copyright (c) 2024, Gurobi Optimization, LLC

Read LP format model from file ./lp_problems/grafo2761.37.lp
Reading time = 0.09 seconds
: 49553 rows, 1587 columns, 149747 nonzeros

CPU model: Intel(R) Core(TM) i5-1038NG7 CPU @ 2.00GHz
Thread count: 4 physical cores, 8 logical processors, using up to 8 threads

Optimize a model with 49553 rows, 1587 columns and 149747 nonzeros
Model fingerprint: 0x454f2db1
Variable types: 37 continuous, 1550 integer (1550 binary)
Coefficient statistics:
  Matrix range     [5e-01, 5e+01]
  Objective range  [1e+00, 1e+00]
  Bounds range     [1e+00, 1e+00]
  RHS range        [1e+00, 5e+01]
Found heuristic solution: objective 2.0000000
Presolve removed 10998 rows and 22 columns
Presolve time: 0.42s
Presolved: 38555 rows, 1565 columns, 117079 nonzeros
Variable types: 0 continuous, 1565 integer (1528 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 23015 rows, 17105 columns, 85999 nonzeros


Root relaxation: objective 3.800000e+01, 1670 iterations, 0.89 seconds (0.49 work units)

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0   38.00000    0  283    5.00000   38.00000   660%     -    3s
H    0     0                       8.0000000   38.00000   375%     -    3s
H    0     0                       9.0000000   38.00000   322%     -    4s
     0     0   38.00000    0  486    9.00000   38.00000   322%     -    6s
H    0     0                      10.0000000   38.00000   280%     -    7s
     0     0   38.00000    0  476   10.00000   38.00000   280%     -    7s
     0     0   38.00000    0  291   10.00000   38.00000   280%     -   14s
H    0     0                      11.0000000   38.00000   245%     -   14s
     0     0   38.00000    0  269   11.00000   38.00000   245%     -   14s
     0     0   38.00000    0  293   11.00000   38.00000   245%     -   20s
     0     0   38.00000    0  264   11.00000   38.00000   245%     -   21s
     0     0   38.00000    0  376   11.00000   38.00000   245%     -   27s
H    0     0                      12.0000000   38.00000   217%     -   27s
     0     0   38.00000    0  312   12.00000   38.00000   217%     -   27s
     0     0   38.00000    0  290   12.00000   38.00000   217%     -   33s
     0     0   38.00000    0  411   12.00000   38.00000   217%     -   34s
H    0     0                      13.0000000   38.00000   192%     -   47s
     0     0   38.00000    0  347   13.00000   38.00000   192%     -   47s
     0     0   38.00000    0  347   13.00000   38.00000   192%     -   48s

Cutting planes:
  Cover: 1
  Clique: 2
  MIR: 25
  Zero half: 1
  RLT: 15

Explored 1 nodes (54900 simplex iterations) in 50.02 seconds (32.73 work units)
Thread count was 8 (of 8 available processors)

Solution count 8: 13 12 11 ... 2

Time limit reached
Best objective 1.300000000000e+01, best bound 3.800000000000e+01, gap 192.3077%

Wrote result file './lp_solutions/grafo2761.37.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 08:22:42 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2761.37.log"
Using license file /Users/sara/gurobi.lic
Academic license - for non-commercial use only - expires 2025-05-12

Gurobi Optimizer version 11.0.1 build v11.0.1rc0 (mac64[x86] - Darwin 21.6.0 21G651)
Copyright (c) 2024, Gurobi Optimization, LLC

Read LP format model from file ./lp_problems/grafo2761.37.lp
Reading time = 0.08 seconds
: 49553 rows, 1587 columns, 149747 nonzeros

CPU model: Intel(R) Core(TM) i5-1038NG7 CPU @ 2.00GHz
Thread count: 4 physical cores, 8 logical processors, using up to 8 threads

Optimize a model with 49553 rows, 1587 columns and 149747 nonzeros
Model fingerprint: 0x454f2db1
Variable types: 37 continuous, 1550 integer (1550 binary)
Coefficient statistics:
  Matrix range     [5e-01, 5e+01]
  Objective range  [1e+00, 1e+00]
  Bounds range     [1e+00, 1e+00]
  RHS range        [1e+00, 5e+01]
Found heuristic solution: objective 2.0000000
Presolve removed 10998 rows and 22 columns
Presolve time: 0.34s
Presolved: 38555 rows, 1565 columns, 117079 nonzeros
Variable types: 0 continuous, 1565 integer (1528 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 23015 rows, 17105 columns, 85999 nonzeros


Root relaxation: objective 3.800000e+01, 1670 iterations, 0.50 seconds (0.49 work units)

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0   38.00000    0  283    5.00000   38.00000   660%     -    2s
H    0     0                       8.0000000   38.00000   375%     -    2s
H    0     0                       9.0000000   38.00000   322%     -    2s
     0     0   38.00000    0  486    9.00000   38.00000   322%     -    4s
H    0     0                      10.0000000   38.00000   280%     -    4s
     0     0   38.00000    0  476   10.00000   38.00000   280%     -    4s
     0     0   38.00000    0  291   10.00000   38.00000   280%     -    9s
H    0     0                      11.0000000   38.00000   245%     -    9s
     0     0   38.00000    0  269   11.00000   38.00000   245%     -   10s
     0     0   38.00000    0  293   11.00000   38.00000   245%     -   14s
     0     0   38.00000    0  264   11.00000   38.00000   245%     -   14s
     0     0   38.00000    0  376   11.00000   38.00000   245%     -   18s
H    0     0                      12.0000000   38.00000   217%     -   18s
     0     0   38.00000    0  312   12.00000   38.00000   217%     -   18s
     0     0   38.00000    0  290   12.00000   38.00000   217%     -   22s
     0     0   38.00000    0  411   12.00000   38.00000   217%     -   22s
H    0     0                      13.0000000   38.00000   192%     -   32s
     0     0   38.00000    0  347   13.00000   38.00000   192%     -   32s
     0     0   38.00000    0  347   13.00000   38.00000   192%     -   32s
     0     2   38.00000    0  340   13.00000   38.00000   192%     -   36s
    27    32   38.00000    7  689   13.00000   38.00000   192%   956   47s
    52    71   36.50000   12  285   13.00000   38.00000   192%   713   50s
H   68    71                      14.0000000   38.00000   171%   598   50s

Cutting planes:
  Lift-and-project: 1
  Cover: 6
  Clique: 15
  MIR: 99
  StrongCG: 1
  Zero half: 2
  RLT: 60
  BQP: 3

Explored 70 nodes (95841 simplex iterations) in 50.04 seconds (63.26 work units)
Thread count was 8 (of 8 available processors)

Solution count 9: 14 13 12 ... 2

Time limit reached
Best objective 1.400000000000e+01, best bound 3.800000000000e+01, gap 171.4286%

Wrote result file './lp_solutions/grafo2761.37.sol'

