
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 17:16:02 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1523.27.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/grafo1523.27.lp
Reading time = 0.16 seconds
: 68922 rows, 1169 columns, 207707 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 68922 rows, 1169 columns and 207707 nonzeros
Model fingerprint: 0x7a67f360
Variable types: 32 continuous, 1137 integer (1137 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 32305 rows and 4 columns
Presolve time: 0.65s
Presolved: 36617 rows, 1165 columns, 111162 nonzeros
Variable types: 0 continuous, 1165 integer (1133 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 1160 rows, 37777 columns, 112327 nonzeros


Root relaxation: objective 3.400000e+01, 1190 iterations, 0.36 seconds (0.28 work units)
Total elapsed time = 7.68s (DegenMoves)

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

     0     0   34.00000    0  276    9.00000   34.00000   278%     -    8s
H    0     0                      10.0000000   34.00000   240%     -    9s
     0     0   34.00000    0  478   10.00000   34.00000   240%     -   12s
     0     0   34.00000    0  452   10.00000   34.00000   240%     -   13s
H    0     0                      11.0000000   34.00000   209%     -   28s
H    0     0                      13.0000000   34.00000   162%     -   28s
     0     0   34.00000    0  376   13.00000   34.00000   162%     -   28s
     0     0   34.00000    0  409   13.00000   34.00000   162%     -   29s
H    0     0                      14.0000000   34.00000   143%     -   41s
     0     0   34.00000    0  342   14.00000   34.00000   143%     -   41s
     0     0   34.00000    0  346   14.00000   34.00000   143%     -   42s
     0     0   34.00000    0  383   14.00000   34.00000   143%     -   50s

Cutting planes:
  Cover: 17
  Clique: 18
  MIR: 91
  StrongCG: 1
  Zero half: 71
  RLT: 52

Explored 1 nodes (41626 simplex iterations) in 50.04 seconds (33.66 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 14 13 11 ... 9

Time limit reached
Best objective 1.400000000000e+01, best bound 3.400000000000e+01, gap 142.8571%

Wrote result file './lp_solutions/grafo1523.27.sol'

