
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 03:05:03 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5950.43.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/grafo5950.43.lp
Reading time = 0.66 seconds
: 304307 rows, 2804 columns, 915512 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 304307 rows, 2804 columns and 915512 nonzeros
Model fingerprint: 0xca366302
Variable types: 53 continuous, 2751 integer (2751 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 132569 rows and 40 columns
Presolve time: 3.15s
Presolved: 171738 rows, 2764 columns, 518509 nonzeros
Variable types: 0 continuous, 2764 integer (2711 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 2764 rows, 174502 columns, 521273 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    6120    1.0846150e+02   0.000000e+00   6.975466e+05      5s
   25201    5.7959725e+01   0.000000e+00   4.083161e+05     10s
   40158    4.8836546e+01   0.000000e+00   6.978756e+05     15s
   55327    4.8765303e+01   0.000000e+00   2.197059e+04     20s
   71203    4.8739091e+01   0.000000e+00   1.375205e+04     25s
   86323    4.8727828e+01   0.000000e+00   4.918460e+03     30s
  101443    4.8722778e+01   0.000000e+00   1.226676e+03     35s
  115807    4.8721576e+01   0.000000e+00   2.111065e+01     40s
  116630    4.9000000e+01   0.000000e+00   0.000000e+00     40s
  116630    4.9000000e+01   0.000000e+00   0.000000e+00     40s

Root relaxation: objective 4.900000e+01, 116630 iterations, 36.78 seconds (21.88 work units)

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

     0     0   49.00000    0 1581    8.00000   49.00000   513%     -   50s

Explored 1 nodes (120605 simplex iterations) in 50.08 seconds (32.98 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 8 

Time limit reached
Best objective 8.000000000000e+00, best bound 4.900000000000e+01, gap 512.5000%

Wrote result file './lp_solutions/grafo5950.43.sol'

