
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 01:07:45 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3452.41.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/grafo3452.41.lp
Reading time = 0.37 seconds
: 206857 rows, 2504 columns, 622818 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 206857 rows, 2504 columns and 622818 nonzeros
Model fingerprint: 0x4bf3e77c
Variable types: 50 continuous, 2454 integer (2454 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 2.0000000
Presolve removed 79467 rows and 21 columns
Presolve time: 1.76s
Presolved: 127390 rows, 2483 columns, 384757 nonzeros
Variable types: 0 continuous, 2483 integer (2433 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 2480 rows, 129870 columns, 387240 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   15037    7.2665227e+01   0.000000e+00   1.432203e+05      5s
   33480    5.0884360e+01   0.000000e+00   1.629390e+05     10s
   50249    5.0843624e+01   0.000000e+00   7.347643e+03     15s
   67589    5.0830459e+01   0.000000e+00   1.402944e+03     20s
   85507    5.0827311e+01   0.000000e+00   9.383583e+00     25s
   86114    5.1000000e+01   0.000000e+00   0.000000e+00     25s
   86114    5.1000000e+01   0.000000e+00   0.000000e+00     25s
   86114    5.1000000e+01   0.000000e+00   0.000000e+00     25s

Root relaxation: objective 5.100000e+01, 86114 iterations, 23.38 seconds (13.44 work units)
Total elapsed time = 46.93s (DegenMoves)

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

     0     0   51.00000    0  820   11.00000   51.00000   364%     -   50s

Explored 1 nodes (99778 simplex iterations) in 50.05 seconds (39.44 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 11 2 

Time limit reached
Best objective 1.100000000000e+01, best bound 5.100000000000e+01, gap 363.6364%

Wrote result file './lp_solutions/grafo3452.41.sol'

