
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 01:42:13 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1109.24.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/grafo1109.24.lp
Reading time = 0.26 seconds
: 157196 rows, 1080 columns, 472448 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 157196 rows, 1080 columns and 472448 nonzeros
Model fingerprint: 0x44ce130f
Variable types: 31 continuous, 1049 integer (1049 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 1.0000000
Presolve removed 77830 rows and 4 columns
Presolve time: 1.10s
Presolved: 79366 rows, 1076 columns, 239091 nonzeros
Variable types: 0 continuous, 1076 integer (1045 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 1074 rows, 80440 columns, 240167 nonzeros


Root relaxation: objective 3.800000e+01, 1563 iterations, 0.71 seconds (1.02 work units)
Total elapsed time = 5.28s (DegenMoves)

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

     0     0   38.00000    0  409    5.00000   38.00000   660%     -    6s
H    0     0                       8.0000000   38.00000   375%     -    6s
     0     0   38.00000    0  418    8.00000   38.00000   375%     -   10s
     0     0   38.00000    0  408    8.00000   38.00000   375%     -   11s
     0     0   38.00000    0  377    8.00000   38.00000   375%     -   21s
     0     0   38.00000    0  351    8.00000   38.00000   375%     -   22s
     0     0   38.00000    0  212    8.00000   38.00000   375%     -   38s
     0     0   38.00000    0  262    8.00000   38.00000   375%     -   39s
     0     0   38.00000    0  367    8.00000   38.00000   375%     -   49s

Cutting planes:
  Cover: 4
  Clique: 27
  MIR: 22
  GUB cover: 1
  Zero half: 2
  RLT: 12
  BQP: 2

Explored 1 nodes (34200 simplex iterations) in 50.02 seconds (65.42 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 8 5 1 

Time limit reached
Best objective 8.000000000000e+00, best bound 3.800000000000e+01, gap 375.0000%

Wrote result file './lp_solutions/grafo1109.24.sol'

