
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 03:21:07 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7377.43.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/grafo7377.43.lp
Reading time = 0.36 seconds
: 198640 rows, 2668 columns, 598256 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 198640 rows, 2668 columns and 598256 nonzeros
Model fingerprint: 0x41558973
Variable types: 51 continuous, 2617 integer (2617 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 74166 rows and 25 columns
Presolve time: 1.82s
Presolved: 124474 rows, 2643 columns, 376203 nonzeros
Variable types: 0 continuous, 2643 integer (2592 binary)
Root relaxation presolved: 2643 rows, 127117 columns, 378846 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   11863    8.6899545e+01   0.000000e+00   4.390799e+05      5s
   28856    5.7794199e+01   0.000000e+00   8.024968e+04     10s
   45657    5.7750922e+01   0.000000e+00   4.014343e+04     15s
   61337    5.7740521e+01   0.000000e+00   2.917831e+03     20s
   77017    5.7738366e+01   0.000000e+00   1.059669e-01     25s
   77055    5.8000000e+01   0.000000e+00   0.000000e+00     25s
   77055    5.8000000e+01   0.000000e+00   0.000000e+00     25s

Root relaxation: objective 5.800000e+01, 77055 iterations, 22.93 seconds (14.02 work units)

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

     0     0   58.00000    0 1456          -   58.00000      -     -   50s
H    0     0                       3.0000000   58.00000  1833%     -   50s

Explored 1 nodes (87837 simplex iterations) in 50.09 seconds (37.19 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 3 

Time limit reached
Best objective 3.000000000000e+00, best bound 5.800000000000e+01, gap 1833.3333%

Wrote result file './lp_solutions/grafo7377.43.sol'

