
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 02:38:04 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7651.42.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/grafo7651.42.lp
Reading time = 0.53 seconds
: 277682 rows, 2231 columns, 834837 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 277682 rows, 2231 columns and 834837 nonzeros
Model fingerprint: 0xf40e5312
Variable types: 43 continuous, 2188 integer (2188 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 122894 rows and 8 columns
Presolve time: 2.40s
Presolved: 154788 rows, 2223 columns, 466393 nonzeros
Variable types: 0 continuous, 2223 integer (2180 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2217 rows, 157005 columns, 468616 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   12120    7.9628911e+01   0.000000e+00   2.183882e+05      5s
   33949    4.9925865e+01   0.000000e+00   1.066902e+05     10s
   53630    4.5840277e+01   0.000000e+00   1.128131e+04     15s
   75711    4.5819796e+01   0.000000e+00   3.481906e+03     20s
   98496    4.5814683e+01   0.000000e+00   4.075324e+01     25s
  100691    4.6000000e+01   0.000000e+00   0.000000e+00     26s
  100691    4.6000000e+01   0.000000e+00   0.000000e+00     26s
  100691    4.6000000e+01   0.000000e+00   0.000000e+00     26s

Root relaxation: objective 4.600000e+01, 100691 iterations, 22.75 seconds (13.42 work units)
Total elapsed time = 46.42s (DegenMoves)

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

     0     0   46.00000    0  631   10.00000   46.00000   360%     -   50s

Explored 1 nodes (112460 simplex iterations) in 50.10 seconds (40.65 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 10 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.600000000000e+01, gap 360.0000%

Wrote result file './lp_solutions/grafo7651.42.sol'

