
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 10:05:29 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1378.46.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/grafo1378.46.lp
Reading time = 0.21 seconds
: 133108 rows, 2776 columns, 401674 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 133108 rows, 2776 columns and 401674 nonzeros
Model fingerprint: 0x06c98f25
Variable types: 52 continuous, 2724 integer (2724 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 34734 rows and 34 columns
Presolve time: 0.95s
Presolved: 98374 rows, 2742 columns, 297994 nonzeros
Variable types: 0 continuous, 2742 integer (2690 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2739 rows, 101113 columns, 300736 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   19468    5.3982917e+01   0.000000e+00   6.600637e+04      5s
   39352    5.3955219e+01   0.000000e+00   6.473020e+04     10s
   58360    5.3945101e+01   0.000000e+00   1.155045e+04     15s
   76504    5.3940783e+01   0.000000e+00   5.232719e+03     20s
   94429    5.4000000e+01   0.000000e+00   0.000000e+00     25s
   94429    5.4000000e+01   0.000000e+00   0.000000e+00     25s
   94429    5.4000000e+01   0.000000e+00   0.000000e+00     25s

Root relaxation: objective 5.400000e+01, 94429 iterations, 23.66 seconds (21.53 work units)
Total elapsed time = 25.23s (DegenMoves)
Total elapsed time = 43.68s (DegenMoves)
Total elapsed time = 48.67s (DegenMoves)

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

     0     0   54.00000    0  753   10.00000   54.00000   440%     -   50s

Explored 1 nodes (113165 simplex iterations) in 50.03 seconds (52.90 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 10 

Time limit reached
Best objective 1.000000000000e+01, best bound 5.400000000000e+01, gap 440.0000%

Wrote result file './lp_solutions/grafo1378.46.sol'

