
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 01:10:17 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3575.41.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/grafo3575.41.lp
Reading time = 0.24 seconds
: 123974 rows, 2425 columns, 374098 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 123974 rows, 2425 columns and 374098 nonzeros
Model fingerprint: 0x340f7394
Variable types: 50 continuous, 2375 integer (2375 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 34847 rows and 35 columns
Presolve time: 1.20s
Presolved: 89127 rows, 2390 columns, 269920 nonzeros
Variable types: 0 continuous, 2390 integer (2340 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 2390 rows, 91517 columns, 272310 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   17301    4.7998021e+01   0.000000e+00   9.259982e+04      5s
   36484    4.7964964e+01   0.000000e+00   1.121821e+04     10s
   54446    4.7960851e+01   0.000000e+00   1.663965e+02     15s
   56910    4.8000000e+01   0.000000e+00   0.000000e+00     16s
   56910    4.8000000e+01   0.000000e+00   0.000000e+00     16s

Root relaxation: objective 4.800000e+01, 56910 iterations, 14.39 seconds (8.98 work units)
Total elapsed time = 46.40s (DegenMoves)

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

     0     0   48.00000    0 1094    6.00000   48.00000   700%     -   50s

Explored 1 nodes (75202 simplex iterations) in 50.04 seconds (40.90 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 6 

Time limit reached
Best objective 6.000000000000e+00, best bound 4.800000000000e+01, gap 700.0000%

Wrote result file './lp_solutions/grafo3575.41.sol'

