
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 21:53:25 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2725.38.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/grafo2725.38.lp
Reading time = 0.08 seconds
: 66264 rows, 1718 columns, 200084 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 66264 rows, 1718 columns and 200084 nonzeros
Model fingerprint: 0xeafa45f2
Variable types: 39 continuous, 1679 integer (1679 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 18773 rows and 23 columns
Presolve time: 0.37s
Presolved: 47491 rows, 1695 columns, 144010 nonzeros
Variable types: 0 continuous, 1695 integer (1656 binary)
Root relaxation presolved: 1695 rows, 49186 columns, 145705 nonzeros


Root relaxation: objective 3.500000e+01, 1276 iterations, 0.18 seconds (0.20 work units)

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

     0     0   35.00000    0  265          -   35.00000      -     -    2s
H    0     0                       5.0000000   35.00000   600%     -    2s
     0     0   35.00000    0  530    5.00000   35.00000   600%     -    6s
H    0     0                      13.0000000   35.00000   169%     -    6s
     0     0   35.00000    0  504   13.00000   35.00000   169%     -    7s
     0     0   35.00000    0  424   13.00000   35.00000   169%     -   17s
H    0     0                      15.0000000   35.00000   133%     -   17s
     0     0   35.00000    0  447   15.00000   35.00000   133%     -   17s
     0     0   35.00000    0  279   15.00000   35.00000   133%     -   28s
     0     0   35.00000    0  429   15.00000   35.00000   133%     -   30s
     0     0   35.00000    0  417   15.00000   35.00000   133%     -   34s
H    0     0                      16.0000000   35.00000   119%     -   34s
     0     0   35.00000    0  387   16.00000   35.00000   119%     -   35s
H    0     0                      17.0000000   35.00000   106%     -   47s
H    0     0                      18.0000000   35.00000  94.4%     -   47s
     0     0   35.00000    0  298   18.00000   35.00000  94.4%     -   47s
     0     0   35.00000    0  277   18.00000   35.00000  94.4%     -   47s
     0     0          -    0        18.00000   35.00000  94.4%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 33
  Clique: 4
  MIR: 135
  StrongCG: 2
  Inf proof: 1
  Zero half: 29
  RLT: 48

Explored 1 nodes (53035 simplex iterations) in 50.07 seconds (35.08 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 18 17 16 ... 5

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

Wrote result file './lp_solutions/grafo2725.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 02:37:14 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2725.38.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/grafo2725.38.lp
Reading time = 0.11 seconds
: 66264 rows, 1718 columns, 200084 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 66264 rows, 1718 columns and 200084 nonzeros
Model fingerprint: 0xeafa45f2
Variable types: 39 continuous, 1679 integer (1679 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 18773 rows and 23 columns
Presolve time: 0.47s
Presolved: 47491 rows, 1695 columns, 144010 nonzeros
Variable types: 0 continuous, 1695 integer (1656 binary)
Root relaxation presolved: 1695 rows, 49186 columns, 145705 nonzeros


Root relaxation: objective 3.500000e+01, 1276 iterations, 0.25 seconds (0.20 work units)

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

     0     0   35.00000    0  265          -   35.00000      -     -    3s
H    0     0                       5.0000000   35.00000   600%     -    3s
     0     0   35.00000    0  530    5.00000   35.00000   600%     -    6s
H    0     0                      13.0000000   35.00000   169%     -    6s
     0     0   35.00000    0  504   13.00000   35.00000   169%     -    7s
     0     0   35.00000    0  424   13.00000   35.00000   169%     -   15s
H    0     0                      15.0000000   35.00000   133%     -   15s
     0     0   35.00000    0  447   15.00000   35.00000   133%     -   16s
     0     0   35.00000    0  279   15.00000   35.00000   133%     -   22s
     0     0   35.00000    0  429   15.00000   35.00000   133%     -   23s
     0     0   35.00000    0  417   15.00000   35.00000   133%     -   27s
H    0     0                      16.0000000   35.00000   119%     -   27s
     0     0   35.00000    0  387   16.00000   35.00000   119%     -   27s
H    0     0                      17.0000000   35.00000   106%     -   37s
H    0     0                      18.0000000   35.00000  94.4%     -   37s
     0     0   35.00000    0  298   18.00000   35.00000  94.4%     -   37s
     0     0   35.00000    0  277   18.00000   35.00000  94.4%     -   37s
     0     0   35.00000    0  343   18.00000   35.00000  94.4%     -   44s
     0     0   35.00000    0  314   18.00000   35.00000  94.4%     -   45s
H    0     0                      19.0000000   35.00000  84.2%     -   49s

Cutting planes:
  Gomory: 1
  Cover: 2
  Clique: 3
  MIR: 11
  StrongCG: 1
  Zero half: 1
  RLT: 10

Explored 1 nodes (60565 simplex iterations) in 50.03 seconds (44.06 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 19 18 17 ... 5

Time limit reached
Best objective 1.900000000000e+01, best bound 3.500000000000e+01, gap 84.2105%

Wrote result file './lp_solutions/grafo2725.38.sol'

