
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 03:38:01 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3615.44.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/grafo3615.44.lp
Reading time = 0.45 seconds
: 239302 rows, 2475 columns, 719930 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 239302 rows, 2475 columns and 719930 nonzeros
Model fingerprint: 0x7fce0c0c
Variable types: 47 continuous, 2428 integer (2428 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 96697 rows and 11 columns
Presolve time: 2.14s
Presolved: 142605 rows, 2464 columns, 430229 nonzeros
Variable types: 0 continuous, 2464 integer (2417 binary)
Found heuristic solution: objective 13.0000000
Root relaxation presolved: 2451 rows, 145056 columns, 432693 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   14730    8.0101445e+01   0.000000e+00   2.570572e+05      5s
   32619    4.6856310e+01   0.000000e+00   1.834202e+05     10s
   50813    4.5787502e+01   0.000000e+00   5.399495e+04     15s
   69548    4.5761178e+01   0.000000e+00   8.863793e+04     20s
   88282    4.5752043e+01   0.000000e+00   7.118585e+03     25s
  104115    4.6000000e+01   0.000000e+00   0.000000e+00     29s
  104115    4.6000000e+01   0.000000e+00   0.000000e+00     29s
  104115    4.6000000e+01   0.000000e+00   0.000000e+00     29s

Root relaxation: objective 4.600000e+01, 104115 iterations, 27.04 seconds (15.41 work units)
Total elapsed time = 44.73s (DegenMoves)
Total elapsed time = 45.93s (DegenMoves)

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

     0     0   46.00000    0  485   13.00000   46.00000   254%     -   48s
H    0     0                      14.0000000   46.00000   229%     -   48s

Cutting planes:
  Cover: 41
  Clique: 25
  MIR: 95
  StrongCG: 1
  GUB cover: 1

Explored 1 nodes (114389 simplex iterations) in 50.06 seconds (35.87 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 14 13 1 

Time limit reached
Best objective 1.400000000000e+01, best bound 4.600000000000e+01, gap 228.5714%

Wrote result file './lp_solutions/grafo3615.44.sol'

