
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 09:56:15 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7241.45.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/grafo7241.45.lp
Reading time = 0.26 seconds
: 163599 rows, 2958 columns, 493487 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 163599 rows, 2958 columns and 493487 nonzeros
Model fingerprint: 0x6ec1d404
Variable types: 55 continuous, 2903 integer (2903 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]
Found heuristic solution: objective -0.0000000
Presolve removed 46541 rows and 21 columns
Presolve time: 1.14s
Presolved: 117058 rows, 2937 columns, 354418 nonzeros
Variable types: 0 continuous, 2937 integer (2882 binary)
Found heuristic solution: objective 13.0000000
Root relaxation presolved: 2922 rows, 119980 columns, 357355 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   17454    6.8775153e+01   0.000000e+00   1.650404e+06      5s
   34890    6.1701564e+01   0.000000e+00   7.691056e+04     10s
   53659    6.1655965e+01   0.000000e+00   3.030160e+04     15s
   71937    6.1640628e+01   0.000000e+00   5.211054e+03     20s
   90215    6.1635492e+01   0.000000e+00   4.506152e+03     25s
  100917    6.2000000e+01   0.000000e+00   0.000000e+00     28s
  100917    6.2000000e+01   0.000000e+00   0.000000e+00     28s
  100917    6.2000000e+01   0.000000e+00   0.000000e+00     28s

Root relaxation: objective 6.200000e+01, 100917 iterations, 26.87 seconds (21.14 work units)

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

     0     0   62.00000    0 1719   13.00000   62.00000   377%     -   50s

Explored 1 nodes (113975 simplex iterations) in 50.04 seconds (43.77 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 13 -0 

Time limit reached
Best objective 1.300000000000e+01, best bound 6.200000000000e+01, gap 376.9231%

Wrote result file './lp_solutions/grafo7241.45.sol'

