
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 11:25:23 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo170.49.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/grafo170.49.lp
Reading time = 0.23 seconds
: 138034 rows, 3085 columns, 416782 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 138034 rows, 3085 columns and 416782 nonzeros
Model fingerprint: 0x4ad07d46
Variable types: 55 continuous, 3030 integer (3030 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 27936 rows and 15 columns
Presolve time: 0.99s
Presolved: 110098 rows, 3070 columns, 333493 nonzeros
Variable types: 0 continuous, 3070 integer (3015 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 3055 rows, 113153 columns, 336563 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   18265    5.5982827e+01   0.000000e+00   4.776229e+04      5s
   35190    5.5953791e+01   0.000000e+00   2.678823e+04     10s
   50238    5.5944291e+01   0.000000e+00   1.617633e+04     15s
   65286    5.5938457e+01   0.000000e+00   1.115525e+04     20s
   79878    5.5936111e+01   0.000000e+00   1.807837e+03     25s
   93265    5.6000000e+01   0.000000e+00   0.000000e+00     30s
   93265    5.6000000e+01   0.000000e+00   0.000000e+00     30s
   93265    5.6000000e+01   0.000000e+00   0.000000e+00     30s

Root relaxation: objective 5.600000e+01, 93265 iterations, 28.61 seconds (23.81 work units)
Total elapsed time = 30.35s (DegenMoves)

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

     0     0   56.00000    0 1826   10.00000   56.00000   460%     -   50s

Explored 1 nodes (102800 simplex iterations) in 50.04 seconds (42.39 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 10 

Time limit reached
Best objective 1.000000000000e+01, best bound 5.600000000000e+01, gap 460.0000%

Wrote result file './lp_solutions/grafo170.49.sol'

