
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 03:41:23 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3799.44.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/grafo3799.44.lp
Reading time = 0.76 seconds
: 407963 rows, 3660 columns, 1227738 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 407963 rows, 3660 columns and 1227738 nonzeros
Model fingerprint: 0x8cdef0be
Variable types: 64 continuous, 3596 integer (3596 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 161740 rows and 32 columns
Presolve time: 3.64s
Presolved: 246223 rows, 3628 columns, 743071 nonzeros
Variable types: 0 continuous, 3628 integer (3564 binary)
Root relaxation presolved: 3622 rows, 249845 columns, 746699 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
       0    9.2562000e+02   0.000000e+00   8.764974e+05      6s
   18808    1.6175381e+02   0.000000e+00   1.340312e+06     11s
   30782    1.3372258e+02   0.000000e+00   4.042272e+05     16s
   40237    1.1057974e+02   0.000000e+00   4.689884e+05     20s
   51706    9.3979888e+01   0.000000e+00   4.141661e+05     26s
   60752    9.0922899e+01   0.000000e+00   4.446317e+05     31s
   71207    8.1888223e+01   0.000000e+00   2.542658e+05     35s
   81299    7.8851425e+01   0.000000e+00   1.011265e+06     40s
   91586    7.8814769e+01   0.000000e+00   4.159224e+05     45s

Root relaxation: time limit, 0 iterations, 45.58 seconds (27.02 work units)

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

H    0     0                       2.0000000  461.00000      -     -   50s

Explored 1 nodes (0 simplex iterations) in 50.08 seconds (30.65 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 2 

Time limit reached
Best objective 2.000000000000e+00, best bound 4.610000000000e+02, gap 22950.0000%

Wrote result file './lp_solutions/grafo3799.44.sol'

