
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 02:41:26 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2369.43.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/grafo2369.43.lp
Reading time = 0.32 seconds
: 144765 rows, 2288 columns, 436072 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 144765 rows, 2288 columns and 436072 nonzeros
Model fingerprint: 0x8434eaa5
Variable types: 45 continuous, 2243 integer (2243 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 50496 rows and 24 columns
Presolve time: 1.35s
Presolved: 94269 rows, 2264 columns, 284937 nonzeros
Variable types: 0 continuous, 2264 integer (2219 binary)
Found heuristic solution: objective 4.0000000
Root relaxation presolved: 2261 rows, 96530 columns, 287201 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   16801    4.4885481e+01   0.000000e+00   7.284668e+04      5s
   37157    4.4814664e+01   0.000000e+00   3.725943e+02     10s
   40570    4.5000000e+01   0.000000e+00   0.000000e+00     11s
   40570    4.5000000e+01   0.000000e+00   0.000000e+00     11s
   40570    4.5000000e+01   0.000000e+00   0.000000e+00     11s

Root relaxation: objective 4.500000e+01, 40570 iterations, 9.43 seconds (5.81 work units)
Total elapsed time = 25.82s (DegenMoves)

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

     0     0   45.00000    0  512    4.00000   45.00000  1025%     -   28s
H    0     0                       6.0000000   45.00000   650%     -   28s
     0     0   45.00000    0  773    6.00000   45.00000   650%     -   45s
     0     0   45.00000    0  774    6.00000   45.00000   650%     -   47s
     0     0          -    0         6.00000   45.00000   650%     -   50s

Cutting planes:
  Gomory: 5
  Cover: 27
  Clique: 28
  MIR: 126
  Zero half: 51
  RLT: 92
  BQP: 8

Explored 1 nodes (60486 simplex iterations) in 50.05 seconds (41.45 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 6 4 

Time limit reached
Best objective 6.000000000000e+00, best bound 4.500000000000e+01, gap 650.0000%

Wrote result file './lp_solutions/grafo2369.43.sol'

