
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 04:43:07 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3493.46.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/grafo3493.46.lp
Reading time = 0.28 seconds
: 162232 rows, 2462 columns, 488565 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 162232 rows, 2462 columns and 488565 nonzeros
Model fingerprint: 0x3e3e77ca
Variable types: 46 continuous, 2416 integer (2416 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 55282 rows and 19 columns
Presolve time: 1.45s
Presolved: 106950 rows, 2443 columns, 322954 nonzeros
Variable types: 0 continuous, 2443 integer (2397 binary)
Root relaxation presolved: 2443 rows, 109393 columns, 325397 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   15937    4.8808681e+01   0.000000e+00   5.102210e+04      5s
   33788    4.8749825e+01   0.000000e+00   2.688216e+04     10s
   51638    4.8741090e+01   0.000000e+00   8.923752e+01     15s
   56043    4.9000000e+01   0.000000e+00   0.000000e+00     17s
   56043    4.9000000e+01   0.000000e+00   0.000000e+00     17s

Root relaxation: objective 4.900000e+01, 56043 iterations, 14.79 seconds (8.77 work units)
Total elapsed time = 42.87s (DegenMoves)
Total elapsed time = 49.78s (DegenMoves)

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

     0     0   49.00000    0 1015          -   49.00000      -     -   50s
H    0     0                       3.0000000   49.00000  1533%     -   50s

Explored 1 nodes (74355 simplex iterations) in 50.08 seconds (43.76 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 3 

Time limit reached
Best objective 3.000000000000e+00, best bound 4.900000000000e+01, gap 1533.3333%

Wrote result file './lp_solutions/grafo3493.46.sol'

