
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 03:25:21 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7453.43.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/grafo7453.43.lp
Reading time = 0.64 seconds
: 355438 rows, 3564 columns, 1070064 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 355438 rows, 3564 columns and 1070064 nonzeros
Model fingerprint: 0xc198eec1
Variable types: 63 continuous, 3501 integer (3501 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 136292 rows and 22 columns
Presolve time: 3.27s
Presolved: 219146 rows, 3542 columns, 661812 nonzeros
Variable types: 0 continuous, 3542 integer (3479 binary)
Root relaxation presolved: 3530 rows, 222676 columns, 665354 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
     840    3.9703872e+02   0.000000e+00   4.149210e+06      5s
   20820    1.2157375e+02   0.000000e+00   6.629401e+05     10s
   32801    8.6753553e+01   0.000000e+00   1.171152e+06     16s
   43341    7.8674170e+01   0.000000e+00   3.368547e+05     21s
   52698    7.6619473e+01   0.000000e+00   2.606533e+05     25s
   63735    7.3573560e+01   0.000000e+00   9.708676e+04     30s
   74735    7.3537889e+01   0.000000e+00   7.591890e+04     35s
   84822    7.3513517e+01   0.000000e+00   2.146594e+05     40s
   95742    7.3493735e+01   0.000000e+00   4.535366e+04     45s

Root relaxation: time limit, 0 iterations, 45.98 seconds (26.00 work units)

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

H    0     0                       1.0000000  475.00000      -     -   50s

Explored 1 nodes (0 simplex iterations) in 50.07 seconds (29.20 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 1 

Time limit reached
Best objective 1.000000000000e+00, best bound 4.750000000000e+02, gap 47400.0000%

Wrote result file './lp_solutions/grafo7453.43.sol'

