
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 08:01:39 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6957.39.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/grafo6957.39.lp
Reading time = 0.19 seconds
: 116200 rows, 2383 columns, 350804 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 116200 rows, 2383 columns and 350804 nonzeros
Model fingerprint: 0xc2cfb2bc
Variable types: 48 continuous, 2335 integer (2335 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 35781 rows and 17 columns
Presolve time: 0.75s
Presolved: 80419 rows, 2366 columns, 243950 nonzeros
Variable types: 0 continuous, 2366 integer (2318 binary)
Root relaxation presolved: 2360 rows, 82779 columns, 246316 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   21213    5.4921336e+01   0.000000e+00   5.863188e+04      5s
   44104    5.4904549e+01   0.000000e+00   1.156853e+04     10s
   66985    5.4898806e+01   0.000000e+00   1.190084e+03     15s
   79827    5.5000000e+01   0.000000e+00   0.000000e+00     18s
   79827    5.5000000e+01   0.000000e+00   0.000000e+00     18s
   79827    5.5000000e+01   0.000000e+00   0.000000e+00     18s

Root relaxation: objective 5.500000e+01, 79827 iterations, 16.95 seconds (14.00 work units)
Total elapsed time = 36.19s (DegenMoves)

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

     0     0   55.00000    0  852          -   55.00000      -     -   50s
H    0     0                       9.0000000   55.00000   511%     -   50s

Explored 1 nodes (105917 simplex iterations) in 50.04 seconds (56.90 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 9 

Time limit reached
Best objective 9.000000000000e+00, best bound 5.500000000000e+01, gap 511.1111%

Wrote result file './lp_solutions/grafo6957.39.sol'

