
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 15:53:21 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3037.23.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/grafo3037.23.lp
Reading time = 0.07 seconds
: 43955 rows, 938 columns, 132589 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 43955 rows, 938 columns and 132589 nonzeros
Model fingerprint: 0x819f6505
Variable types: 31 continuous, 907 integer (907 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 -0.0000000
Presolve removed 17664 rows and 21 columns
Presolve time: 0.32s
Presolved: 26291 rows, 917 columns, 79795 nonzeros
Variable types: 0 continuous, 917 integer (886 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 20025 rows, 7183 columns, 67263 nonzeros


Root relaxation: objective 2.800000e+01, 1447 iterations, 0.47 seconds (0.53 work units)

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

     0     0   28.00000    0  366    6.00000   28.00000   367%     -    1s
     0     0   28.00000    0  420    6.00000   28.00000   367%     -    3s
     0     0   28.00000    0  414    6.00000   28.00000   367%     -    3s
     0     0   28.00000    0  391    6.00000   28.00000   367%     -   14s
     0     0   28.00000    0  372    6.00000   28.00000   367%     -   14s
     0     0   28.00000    0  372    6.00000   28.00000   367%     -   20s
     0     0   28.00000    0  357    6.00000   28.00000   367%     -   20s
H    0     0                       7.0000000   28.00000   300%     -   27s
H    0     0                       8.0000000   28.00000   250%     -   27s
     0     0   28.00000    0  309    8.00000   28.00000   250%     -   27s
H    0     0                      10.0000000   28.00000   180%     -   28s
     0     0   28.00000    0  331   10.00000   28.00000   180%     -   28s
     0     0   28.00000    0  344   10.00000   28.00000   180%     -   36s
     0     0   28.00000    0  376   10.00000   28.00000   180%     -   37s
     0     0   28.00000    0  414   10.00000   28.00000   180%     -   43s
     0     0   28.00000    0  362   10.00000   28.00000   180%     -   44s
     0     0   28.00000    0  352   10.00000   28.00000   180%     -   49s
     0     0   28.00000    0  352   10.00000   28.00000   180%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 4
  Clique: 16
  MIR: 30
  StrongCG: 1
  GUB cover: 1
  Zero half: 4
  RLT: 41

Explored 1 nodes (67390 simplex iterations) in 50.02 seconds (46.27 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 10 8 7 ... -0

Time limit reached
Best objective 1.000000000000e+01, best bound 2.800000000000e+01, gap 180.0000%

Wrote result file './lp_solutions/grafo3037.23.sol'

