
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 07:34:42 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2708.39.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/grafo2708.39.lp
Reading time = 0.24 seconds
: 148090 rows, 2169 columns, 446167 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 148090 rows, 2169 columns and 446167 nonzeros
Model fingerprint: 0xc7b6212b
Variable types: 44 continuous, 2125 integer (2125 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 55697 rows and 19 columns
Presolve time: 1.02s
Presolved: 92393 rows, 2150 columns, 279661 nonzeros
Variable types: 0 continuous, 2150 integer (2106 binary)
Root relaxation presolved: 2150 rows, 94543 columns, 281811 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   24995    3.9715027e+01   0.000000e+00   7.809436e+02      5s
   30295    4.0000000e+01   0.000000e+00   0.000000e+00      6s
   30295    4.0000000e+01   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 4.000000e+01, 30295 iterations, 4.82 seconds (4.09 work units)
Total elapsed time = 13.56s (DegenMoves)

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

     0     0   40.00000    0  352          -   40.00000      -     -   15s
H    0     0                       8.0000000   40.00000   400%     -   15s
H    0     0                       9.0000000   40.00000   344%     -   15s
H    0     0                      10.0000000   40.00000   300%     -   15s
     0     0   40.00000    0  612   10.00000   40.00000   300%     -   24s
H    0     0                      12.0000000   40.00000   233%     -   25s
     0     0   40.00000    0  601   12.00000   40.00000   233%     -   25s
     0     0   40.00000    0  443   12.00000   40.00000   233%     -   43s
H    0     0                      13.0000000   40.00000   208%     -   44s
     0     0   40.00000    0  429   13.00000   40.00000   208%     -   44s
     0     0          -    0        13.00000   40.00000   208%     -   50s

Cutting planes:
  Cover: 43
  Clique: 22
  MIR: 90
  GUB cover: 2
  Zero half: 89
  RLT: 54
  BQP: 1

Explored 1 nodes (59573 simplex iterations) in 50.02 seconds (51.87 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 13 12 10 ... 8

Time limit reached
Best objective 1.300000000000e+01, best bound 4.000000000000e+01, gap 207.6923%

Wrote result file './lp_solutions/grafo2708.39.sol'

