
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 02:58:19 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5268.43.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/grafo5268.43.lp
Reading time = 0.23 seconds
: 116092 rows, 2312 columns, 350160 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 116092 rows, 2312 columns and 350160 nonzeros
Model fingerprint: 0x03d2c36b
Variable types: 46 continuous, 2266 integer (2266 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 37340 rows and 20 columns
Presolve time: 1.08s
Presolved: 78752 rows, 2292 columns, 238588 nonzeros
Variable types: 0 continuous, 2292 integer (2246 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2292 rows, 81044 columns, 240880 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   17892    4.4812605e+01   0.000000e+00   1.398925e+05      5s
   37857    4.4782900e+01   0.000000e+00   8.264970e+02     10s
   42806    4.5000000e+01   0.000000e+00   0.000000e+00     11s
   42806    4.5000000e+01   0.000000e+00   0.000000e+00     11s

Root relaxation: objective 4.500000e+01, 42806 iterations, 10.17 seconds (6.33 work units)
Total elapsed time = 25.55s (DegenMoves)
Total elapsed time = 30.06s (DegenMoves)

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

     0     0   45.00000    0  740   10.00000   45.00000   350%     -   50s

Explored 1 nodes (72759 simplex iterations) in 50.04 seconds (54.03 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 7 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.500000000000e+01, gap 350.0000%

Wrote result file './lp_solutions/grafo5268.43.sol'

