
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 04:37:49 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7611.40.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/grafo7611.40.lp
Reading time = 0.14 seconds
: 88023 rows, 2315 columns, 266100 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 88023 rows, 2315 columns and 266100 nonzeros
Model fingerprint: 0x5c85bbeb
Variable types: 49 continuous, 2266 integer (2266 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]
Found heuristic solution: objective 3.0000000
Presolve removed 18805 rows and 39 columns
Presolve time: 0.57s
Presolved: 69218 rows, 2276 columns, 210182 nonzeros
Variable types: 0 continuous, 2276 integer (2227 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2273 rows, 71491 columns, 212458 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   24141    4.8950971e+01   0.000000e+00   1.357351e+04      5s
   46079    4.8938991e+01   0.000000e+00   4.230849e+03     10s
   68357    4.8935484e+01   0.000000e+00   1.746137e+01     15s
   71116    4.9000000e+01   0.000000e+00   0.000000e+00     16s
   71116    4.9000000e+01   0.000000e+00   0.000000e+00     16s
   71116    4.9000000e+01   0.000000e+00   0.000000e+00     16s

Root relaxation: objective 4.900000e+01, 71116 iterations, 14.97 seconds (12.65 work units)
Total elapsed time = 29.45s (DegenMoves)
Total elapsed time = 31.52s (DegenMoves)

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

     0     0   49.00000    0  641    9.00000   49.00000   444%     -   32s
H    0     0                      11.0000000   49.00000   345%     -   32s
     0     0          -    0        11.00000   49.00000   345%     -   50s

Cutting planes:
  Gomory: 38
  Cover: 42
  Clique: 10
  MIR: 131
  GUB cover: 8
  Zero half: 37
  RLT: 41

Explored 1 nodes (96761 simplex iterations) in 50.06 seconds (46.09 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 11 9 3 

Time limit reached
Best objective 1.100000000000e+01, best bound 4.900000000000e+01, gap 345.4545%

Wrote result file './lp_solutions/grafo7611.40.sol'

