
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 07:51:09 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3933.43.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/grafo3933.43.lp
Reading time = 0.17 seconds
: 111887 rows, 2764 columns, 338215 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 111887 rows, 2764 columns and 338215 nonzeros
Model fingerprint: 0xee483e5c
Variable types: 55 continuous, 2709 integer (2709 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, 6e+01]
Presolve removed 20183 rows and 0 columns
Presolve time: 0.63s
Presolved: 91704 rows, 2764 columns, 278047 nonzeros
Variable types: 0 continuous, 2764 integer (2709 binary)
Root relaxation presolved: 2719 rows, 94423 columns, 280811 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   20497    5.4603087e+01   0.000000e+00   2.061601e+04      5s
   40697    5.4575460e+01   0.000000e+00   2.484573e+04     10s
   59705    5.4568871e+01   0.000000e+00   7.820267e+03     15s
   71618    5.5000000e+01   0.000000e+00   0.000000e+00     18s
   71618    5.5000000e+01   0.000000e+00   0.000000e+00     18s
   71618    5.5000000e+01   0.000000e+00   0.000000e+00     18s

Root relaxation: objective 5.500000e+01, 71618 iterations, 17.43 seconds (14.14 work units)
Total elapsed time = 48.10s (DegenMoves)

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

     0     0   55.00000    0 1224          -   55.00000      -     -   50s
H    0     0                       1.0000000   55.00000  5400%     -   50s

Explored 1 nodes (91701 simplex iterations) in 50.04 seconds (47.04 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 1 

Time limit reached
Best objective 1.000000000000e+00, best bound 5.500000000000e+01, gap 5400.0000%

Wrote result file './lp_solutions/grafo3933.43.sol'

