
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 06:55:20 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo4028.39.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/grafo4028.39.lp
Reading time = 0.09 seconds
: 38414 rows, 1636 columns, 116358 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 38414 rows, 1636 columns and 116358 nonzeros
Model fingerprint: 0x7aaa718d
Variable types: 38 continuous, 1598 integer (1598 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 2272 rows and 40 columns
Presolve time: 0.40s
Presolved: 36142 rows, 1596 columns, 109874 nonzeros
Variable types: 0 continuous, 1596 integer (1558 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 18567 rows, 19171 columns, 74724 nonzeros


Root relaxation: objective 2.600000e+01, 3752 iterations, 1.99 seconds (1.26 work units)
Total elapsed time = 5.31s (DegenMoves)

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

     0     0   26.00000    0  451    7.00000   26.00000   271%     -    6s
H    0     0                      10.0000000   26.00000   160%     -    9s
     0     0   26.00000    0  510   10.00000   26.00000   160%     -   13s
     0     0   26.00000    0  492   10.00000   26.00000   160%     -   13s
H    0     0                      11.0000000   26.00000   136%     -   25s
     0     0   25.00000    0  343   11.00000   25.00000   127%     -   25s
     0     0   25.00000    0  397   11.00000   25.00000   127%     -   27s
     0     0   25.00000    0  372   11.00000   25.00000   127%     -   37s
H    0     0                      12.0000000   25.00000   108%     -   38s
     0     0   25.00000    0  431   12.00000   25.00000   108%     -   38s
     0     0   25.00000    0  285   12.00000   25.00000   108%     -   44s
     0     0   25.00000    0  359   12.00000   25.00000   108%     -   46s
     0     0   25.00000    0  390   12.00000   25.00000   108%     -   50s

Cutting planes:
  Gomory: 3
  Cover: 15
  Clique: 1
  MIR: 83
  StrongCG: 1
  GUB cover: 3
  Zero half: 22
  RLT: 43

Explored 1 nodes (53807 simplex iterations) in 50.06 seconds (28.60 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 12 11 10 7 

Time limit reached
Best objective 1.200000000000e+01, best bound 2.500000000000e+01, gap 108.3333%

Wrote result file './lp_solutions/grafo4028.39.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 03:17:01 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo4028.39.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/grafo4028.39.lp
Reading time = 0.06 seconds
: 38414 rows, 1636 columns, 116358 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 38414 rows, 1636 columns and 116358 nonzeros
Model fingerprint: 0x7aaa718d
Variable types: 38 continuous, 1598 integer (1598 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 2272 rows and 40 columns
Presolve time: 0.24s
Presolved: 36142 rows, 1596 columns, 109874 nonzeros
Variable types: 0 continuous, 1596 integer (1558 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 18567 rows, 19171 columns, 74724 nonzeros


Root relaxation: objective 2.600000e+01, 3752 iterations, 1.38 seconds (1.26 work units)

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

     0     0   26.00000    0  451    7.00000   26.00000   271%     -    4s
H    0     0                      10.0000000   26.00000   160%     -    6s
     0     0   26.00000    0  510   10.00000   26.00000   160%     -    8s
     0     0   26.00000    0  492   10.00000   26.00000   160%     -    8s
H    0     0                      11.0000000   26.00000   136%     -   16s
     0     0   25.00000    0  343   11.00000   25.00000   127%     -   16s
     0     0   25.00000    0  397   11.00000   25.00000   127%     -   17s
     0     0   25.00000    0  372   11.00000   25.00000   127%     -   23s
H    0     0                      12.0000000   25.00000   108%     -   24s
     0     0   25.00000    0  431   12.00000   25.00000   108%     -   24s
     0     0   25.00000    0  285   12.00000   25.00000   108%     -   28s
     0     0   25.00000    0  359   12.00000   25.00000   108%     -   29s
     0     0   25.00000    0  308   12.00000   25.00000   108%     -   33s
     0     0   25.00000    0  292   12.00000   25.00000   108%     -   33s
H    0     0                      13.0000000   25.00000  92.3%     -   37s
     0     0   25.00000    0  341   13.00000   25.00000  92.3%     -   37s
     0     0   25.00000    0  438   13.00000   25.00000  92.3%     -   38s
     0     0   25.00000    0  306   13.00000   25.00000  92.3%     -   43s
     0     0   25.00000    0  372   13.00000   25.00000  92.3%     -   44s
     0     0   25.00000    0  358   13.00000   25.00000  92.3%     -   50s

Cutting planes:
  Gomory: 2
  Cover: 16
  Clique: 2
  MIR: 85
  StrongCG: 1
  GUB cover: 1
  Zero half: 32
  RLT: 38

Explored 1 nodes (90511 simplex iterations) in 50.04 seconds (47.04 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 13 12 11 ... 7

Time limit reached
Best objective 1.300000000000e+01, best bound 2.500000000000e+01, gap 92.3077%

Wrote result file './lp_solutions/grafo4028.39.sol'

