
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 04:21:07 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5701.45.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/grafo5701.45.lp
Reading time = 0.33 seconds
: 172373 rows, 2561 columns, 519220 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 172373 rows, 2561 columns and 519220 nonzeros
Model fingerprint: 0x25f9eb36
Variable types: 48 continuous, 2513 integer (2513 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 79605 rows and 62 columns
Presolve time: 1.79s
Presolved: 92768 rows, 2499 columns, 280933 nonzeros
Variable types: 0 continuous, 2499 integer (2451 binary)
Root relaxation presolved: 2486 rows, 95254 columns, 283432 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   13944    4.3965728e+01   0.000000e+00   1.579260e+05      5s
   32723    4.3940154e+01   0.000000e+00   9.440243e+03     10s
   49451    4.3936427e+01   0.000000e+00   5.055899e+02     15s
   60465    4.4000000e+01   0.000000e+00   0.000000e+00     19s
   60465    4.4000000e+01   0.000000e+00   0.000000e+00     19s
   60465    4.4000000e+01   0.000000e+00   0.000000e+00     19s

Root relaxation: objective 4.400000e+01, 60465 iterations, 16.69 seconds (11.05 work units)
Total elapsed time = 39.29s (DegenMoves)
Total elapsed time = 40.55s (DegenMoves)

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

     0     0   44.00000    0  591          -   44.00000      -     -   50s
H    0     0                       3.0000000   44.00000  1367%     -   50s

Explored 1 nodes (80185 simplex iterations) in 50.06 seconds (46.04 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 3 

Time limit reached
Best objective 3.000000000000e+00, best bound 4.400000000000e+01, gap 1366.6667%

Wrote result file './lp_solutions/grafo5701.45.sol'

