
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 03:08:26 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6063.43.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/grafo6063.43.lp
Reading time = 0.29 seconds
: 152049 rows, 2859 columns, 458853 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 152049 rows, 2859 columns and 458853 nonzeros
Model fingerprint: 0x5a3fb434
Variable types: 54 continuous, 2805 integer (2805 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 53690 rows and 67 columns
Presolve time: 1.20s
Presolved: 98359 rows, 2792 columns, 298395 nonzeros
Variable types: 0 continuous, 2792 integer (2738 binary)
Found heuristic solution: objective 13.0000000
Root relaxation presolved: 2786 rows, 101145 columns, 301187 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   15582    5.7997677e+01   0.000000e+00   2.735654e+05      5s
   31687    5.7954734e+01   0.000000e+00   1.158450e+04     10s
   45945    5.7940378e+01   0.000000e+00   3.505062e+04     15s
   59769    5.7935720e+01   0.000000e+00   1.353966e+04     20s
   73161    5.7933810e+01   0.000000e+00   1.054589e+03     25s
   86985    5.7933190e+01   0.000000e+00   5.716149e+01     30s
   90590    5.8000000e+01   0.000000e+00   0.000000e+00     31s
   90590    5.8000000e+01   0.000000e+00   0.000000e+00     31s
   90590    5.8000000e+01   0.000000e+00   0.000000e+00     31s

Root relaxation: objective 5.800000e+01, 90590 iterations, 29.95 seconds (19.05 work units)

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

     0     0   58.00000    0 1636   13.00000   58.00000   346%     -   50s

Explored 1 nodes (97678 simplex iterations) in 50.04 seconds (35.41 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 13 

Time limit reached
Best objective 1.300000000000e+01, best bound 5.800000000000e+01, gap 346.1538%

Wrote result file './lp_solutions/grafo6063.43.sol'

