
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 10:15:34 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5753.46.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/grafo5753.46.lp
Reading time = 0.12 seconds
: 77627 rows, 2318 columns, 234557 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 77627 rows, 2318 columns and 234557 nonzeros
Model fingerprint: 0x7bba884c
Variable types: 44 continuous, 2274 integer (2274 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 7.0000000
Presolve removed 13167 rows and 47 columns
Presolve time: 0.51s
Presolved: 64460 rows, 2271 columns, 195432 nonzeros
Variable types: 0 continuous, 2271 integer (2227 binary)
Found heuristic solution: objective 13.0000000
Root relaxation presolved: 2268 rows, 66728 columns, 197703 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   28035    4.3957359e+01   0.000000e+00   1.570319e+02      5s
   30129    4.4000000e+01   0.000000e+00   0.000000e+00      5s
   30129    4.4000000e+01   0.000000e+00   0.000000e+00      5s
   30129    4.4000000e+01   0.000000e+00   0.000000e+00      5s

Root relaxation: objective 4.400000e+01, 30129 iterations, 4.87 seconds (4.00 work units)
Total elapsed time = 10.96s (DegenMoves)

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

     0     0   44.00000    0  461   13.00000   44.00000   238%     -   11s
H    0     0                      14.0000000   44.00000   214%     -   12s
     0     0   44.00000    0  713   14.00000   44.00000   214%     -   18s
     0     0   44.00000    0  683   14.00000   44.00000   214%     -   19s
H    0     0                      15.0000000   44.00000   193%     -   22s
     0     0   43.00000    0  460   15.00000   43.00000   187%     -   35s
     0     0   43.00000    0  394   15.00000   43.00000   187%     -   35s
     0     0   43.00000    0  419   15.00000   43.00000   187%     -   48s
     0     0          -    0        15.00000   43.00000   187%     -   50s

Cutting planes:
  Lift-and-project: 2
  Clique: 4
  MIR: 9
  Zero half: 1
  RLT: 17

Explored 1 nodes (73452 simplex iterations) in 50.10 seconds (43.99 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 15 14 13 7 

Time limit reached
Best objective 1.500000000000e+01, best bound 4.300000000000e+01, gap 186.6667%

Wrote result file './lp_solutions/grafo5753.46.sol'

