
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 04:12:02 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5154.39.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/grafo5154.39.lp
Reading time = 0.23 seconds
: 143310 rows, 2626 columns, 432479 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 143310 rows, 2626 columns and 432479 nonzeros
Model fingerprint: 0x21da90fd
Variable types: 54 continuous, 2572 integer (2572 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 42472 rows and 30 columns
Presolve time: 1.09s
Presolved: 100838 rows, 2596 columns, 305574 nonzeros
Variable types: 0 continuous, 2596 integer (2542 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2587 rows, 103425 columns, 308170 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   19361    5.8741469e+01   0.000000e+00   2.070189e+05      5s
   39603    5.8633969e+01   0.000000e+00   2.398888e+04     10s
   60078    5.8606215e+01   0.000000e+00   1.304546e+04     15s
   73618    5.9000000e+01   0.000000e+00   0.000000e+00     19s
   73618    5.9000000e+01   0.000000e+00   0.000000e+00     19s
   73618    5.9000000e+01   0.000000e+00   0.000000e+00     19s

Root relaxation: objective 5.900000e+01, 73618 iterations, 17.54 seconds (14.03 work units)
Total elapsed time = 38.78s (DegenMoves)
Total elapsed time = 43.49s (DegenMoves)

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

     0     0   59.00000    0  925    9.00000   59.00000   556%     -   50s

Explored 1 nodes (96350 simplex iterations) in 50.05 seconds (56.10 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 9 1 

Time limit reached
Best objective 9.000000000000e+00, best bound 5.900000000000e+01, gap 555.5556%

Wrote result file './lp_solutions/grafo5154.39.sol'

