
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 02:52:25 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo4026.43.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/grafo4026.43.lp
Reading time = 0.38 seconds
: 204524 rows, 2531 columns, 615738 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 204524 rows, 2531 columns and 615738 nonzeros
Model fingerprint: 0x2c9e6fb4
Variable types: 49 continuous, 2482 integer (2482 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 77034 rows and 23 columns
Presolve time: 1.80s
Presolved: 127490 rows, 2508 columns, 385105 nonzeros
Variable types: 0 continuous, 2508 integer (2459 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 2502 rows, 129992 columns, 387613 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   14632    4.9998426e+01   0.000000e+00   4.822780e+04      5s
   31757    4.9844138e+01   0.000000e+00   2.805943e+05     10s
   50270    4.9757955e+01   0.000000e+00   8.853759e+03     15s
   67610    4.9741354e+01   0.000000e+00   3.911752e+03     20s
   79879    5.0000000e+01   0.000000e+00   0.000000e+00     24s
   79879    5.0000000e+01   0.000000e+00   0.000000e+00     24s
   79879    5.0000000e+01   0.000000e+00   0.000000e+00     24s

Root relaxation: objective 5.000000e+01, 79879 iterations, 21.55 seconds (12.94 work units)
Total elapsed time = 42.04s (DegenMoves)
Total elapsed time = 45.82s (DegenMoves)

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

     0     0   50.00000    0  538    6.00000   50.00000   733%     -   49s
H    0     0                      11.0000000   50.00000   355%     -   49s
H    0     0                      13.0000000   50.00000   285%     -   49s

Explored 1 nodes (93149 simplex iterations) in 50.32 seconds (39.46 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 13 11 6 

Time limit reached
Best objective 1.300000000000e+01, best bound 5.000000000000e+01, gap 284.6154%

Wrote result file './lp_solutions/grafo4026.43.sol'

