
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 07:20:56 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6377.42.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/grafo6377.42.lp
Reading time = 0.32 seconds
: 205652 rows, 3171 columns, 620181 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 205652 rows, 3171 columns and 620181 nonzeros
Model fingerprint: 0xbcf9337d
Variable types: 60 continuous, 3111 integer (3111 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 1.0000000
Presolve removed 63989 rows and 30 columns
Presolve time: 1.55s
Presolved: 141663 rows, 3141 columns, 428784 nonzeros
Variable types: 0 continuous, 3141 integer (3081 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 3135 rows, 144798 columns, 431925 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   15351    9.3505617e+01   0.000000e+00   1.213060e+06      5s
   32545    6.8966344e+01   0.000000e+00   3.887051e+05     10s
   49834    6.8938962e+01   0.000000e+00   1.174606e+05     15s
   65648    6.8924704e+01   0.000000e+00   9.002517e+04     20s
   82190    6.8914487e+01   0.000000e+00   2.659476e+04     25s
   97697    6.8907761e+01   0.000000e+00   2.749339e+04     30s
  113328    6.8902428e+01   0.000000e+00   3.463002e+04     35s
  130348    6.8897618e+01   0.000000e+00   6.292952e+03     40s
  145834    6.8894647e+01   0.000000e+00   5.577547e+04     45s

Root relaxation: time limit, 161671 iterations, 48.22 seconds (41.08 work units)

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

     0     0          -    0         9.00000  334.00000  3611%     -   50s

Explored 1 nodes (161671 simplex iterations) in 50.02 seconds (42.94 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 9 1 

Time limit reached
Best objective 9.000000000000e+00, best bound 3.340000000000e+02, gap 3611.1111%

Wrote result file './lp_solutions/grafo6377.42.sol'

