
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 04:54:32 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2374.37.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/grafo2374.37.lp
Reading time = 0.12 seconds
: 51691 rows, 1739 columns, 156449 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 51691 rows, 1739 columns and 156449 nonzeros
Model fingerprint: 0xa6723185
Variable types: 41 continuous, 1698 integer (1698 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]
Presolve removed 8747 rows and 21 columns
Presolve time: 0.61s
Presolved: 42944 rows, 1718 columns, 130552 nonzeros
Variable types: 0 continuous, 1718 integer (1677 binary)
Root relaxation presolved: 24514 rows, 20148 columns, 93692 nonzeros


Root relaxation: objective 3.600000e+01, 1731 iterations, 0.89 seconds (0.46 work units)

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

     0     0   36.00000    0  301          -   36.00000      -     -    3s
H    0     0                       6.0000000   36.00000   500%     -    3s
H    0     0                       9.0000000   36.00000   300%     -    3s
H    0     0                      11.0000000   36.00000   227%     -    3s
     0     0   36.00000    0  723   11.00000   36.00000   227%     -   11s
     0     0   36.00000    0  642   11.00000   36.00000   227%     -   12s
H    0     0                      13.0000000   36.00000   177%     -   15s
H    0     0                      15.0000000   36.00000   140%     -   24s
     0     0   36.00000    0  420   15.00000   36.00000   140%     -   24s
     0     0   36.00000    0  382   15.00000   36.00000   140%     -   24s
     0     0   36.00000    0  325   15.00000   36.00000   140%     -   33s
     0     0   36.00000    0  263   15.00000   36.00000   140%     -   33s
H    0     0                      16.0000000   36.00000   125%     -   48s
H    0     0                      17.0000000   36.00000   112%     -   48s
H    0     0                      18.0000000   36.00000   100%     -   48s
     0     0   36.00000    0  305   18.00000   36.00000   100%     -   48s
     0     0   36.00000    0  281   18.00000   36.00000   100%     -   49s
     0     0          -    0        18.00000   36.00000   100%     -   50s

Cutting planes:
  Cover: 30
  Clique: 5
  MIR: 106
  GUB cover: 2
  Zero half: 39
  RLT: 50

Explored 1 nodes (47191 simplex iterations) in 50.11 seconds (30.39 work units)
Thread count was 8 (of 8 available processors)

Solution count 8: 18 17 16 ... 6

Time limit reached
Best objective 1.800000000000e+01, best bound 3.600000000000e+01, gap 100.0000%

Wrote result file './lp_solutions/grafo2374.37.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 08:19:21 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2374.37.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/grafo2374.37.lp
Reading time = 0.08 seconds
: 51691 rows, 1739 columns, 156449 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 51691 rows, 1739 columns and 156449 nonzeros
Model fingerprint: 0xa6723185
Variable types: 41 continuous, 1698 integer (1698 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]
Presolve removed 8747 rows and 21 columns
Presolve time: 0.35s
Presolved: 42944 rows, 1718 columns, 130552 nonzeros
Variable types: 0 continuous, 1718 integer (1677 binary)
Root relaxation presolved: 24514 rows, 20148 columns, 93692 nonzeros


Root relaxation: objective 3.600000e+01, 1731 iterations, 0.52 seconds (0.46 work units)

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

     0     0   36.00000    0  301          -   36.00000      -     -    1s
H    0     0                       6.0000000   36.00000   500%     -    2s
H    0     0                       9.0000000   36.00000   300%     -    2s
H    0     0                      11.0000000   36.00000   227%     -    2s
     0     0   36.00000    0  723   11.00000   36.00000   227%     -    7s
     0     0   36.00000    0  642   11.00000   36.00000   227%     -    7s
H    0     0                      13.0000000   36.00000   177%     -   10s
H    0     0                      15.0000000   36.00000   140%     -   16s
     0     0   36.00000    0  420   15.00000   36.00000   140%     -   16s
     0     0   36.00000    0  382   15.00000   36.00000   140%     -   16s
     0     0   36.00000    0  325   15.00000   36.00000   140%     -   22s
     0     0   36.00000    0  263   15.00000   36.00000   140%     -   23s
H    0     0                      16.0000000   36.00000   125%     -   33s
H    0     0                      17.0000000   36.00000   112%     -   33s
H    0     0                      18.0000000   36.00000   100%     -   33s
     0     0   36.00000    0  305   18.00000   36.00000   100%     -   33s
     0     0   36.00000    0  281   18.00000   36.00000   100%     -   33s
     0     0   36.00000    0  311   18.00000   36.00000   100%     -   37s
     0     0   36.00000    0  304   18.00000   36.00000   100%     -   37s
     0     0   35.86667    0  405   18.00000   35.86667  99.3%     -   48s
     0     0   35.86667    0  360   18.00000   35.86667  99.3%     -   50s

Cutting planes:
  Cover: 3
  Clique: 1
  MIR: 31
  StrongCG: 1
  RLT: 15

Explored 1 nodes (72513 simplex iterations) in 50.03 seconds (45.65 work units)
Thread count was 8 (of 8 available processors)

Solution count 8: 18 17 16 ... 6

Time limit reached
Best objective 1.800000000000e+01, best bound 3.500000000000e+01, gap 94.4444%

Wrote result file './lp_solutions/grafo2374.37.sol'

