
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 11:33:47 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo4078.49.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/grafo4078.49.lp
Reading time = 0.49 seconds
: 286974 rows, 3654 columns, 864371 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 286974 rows, 3654 columns and 864371 nonzeros
Model fingerprint: 0xc63ccbea
Variable types: 61 continuous, 3593 integer (3593 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 2.0000000
Presolve removed 101988 rows and 13 columns
Presolve time: 1.98s
Presolved: 184986 rows, 3641 columns, 559077 nonzeros
Variable types: 0 continuous, 3641 integer (3580 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 3617 rows, 188603 columns, 562718 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   11350    1.3633577e+02   0.000000e+00   1.680808e+05      5s
   25398    8.9229290e+01   0.000000e+00   1.831256e+06     10s
   38185    7.6820179e+01   0.000000e+00   1.888829e+05     15s
   49245    7.4767957e+01   0.000000e+00   1.498581e+05     20s
   60934    7.4729663e+01   0.000000e+00   6.713074e+04     25s
   72494    7.4704889e+01   0.000000e+00   5.636297e+04     30s
   84054    7.4690800e+01   0.000000e+00   1.230580e+05     35s
   95614    7.4680561e+01   0.000000e+00   2.763636e+04     40s
  107174    7.4673493e+01   0.000000e+00   1.816866e+04     45s

Root relaxation: time limit, 117887 iterations, 47.73 seconds (32.56 work units)

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

     0     0          -    0         6.00000  422.00000  6933%     -   50s

Explored 1 nodes (117887 simplex iterations) in 50.03 seconds (34.89 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 6 2 

Time limit reached
Best objective 6.000000000000e+00, best bound 4.220000000000e+02, gap 6933.3333%

Wrote result file './lp_solutions/grafo4078.49.sol'

