
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 04:29:40 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6891.39.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/grafo6891.39.lp
Reading time = 0.21 seconds
: 132104 rows, 2315 columns, 398445 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 132104 rows, 2315 columns and 398445 nonzeros
Model fingerprint: 0xa7176fa1
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]
Presolve removed 45225 rows and 28 columns
Presolve time: 0.90s
Presolved: 86879 rows, 2287 columns, 263224 nonzeros
Variable types: 0 continuous, 2287 integer (2238 binary)
Root relaxation presolved: 2284 rows, 89163 columns, 265511 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   23145    4.7755013e+01   0.000000e+00   2.705903e+04      5s
   45147    4.8000000e+01   0.000000e+00   0.000000e+00      9s
   45147    4.8000000e+01   0.000000e+00   0.000000e+00      9s
   45147    4.8000000e+01   0.000000e+00   0.000000e+00      9s

Root relaxation: objective 4.800000e+01, 45147 iterations, 8.28 seconds (6.41 work units)
Total elapsed time = 18.58s (DegenMoves)
Total elapsed time = 20.24s (DegenMoves)

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

     0     0   48.00000    0  416          -   48.00000      -     -   20s
H    0     0                       5.0000000   48.00000   860%     -   22s
     0     0   48.00000    0  671    5.00000   48.00000   860%     -   32s
H    0     0                      10.0000000   48.00000   380%     -   33s
     0     0   48.00000    0  690   10.00000   48.00000   380%     -   35s
     0     0   48.00000    0  815   10.00000   48.00000   380%     -   50s

Cutting planes:
  Lift-and-project: 38
  Cover: 17
  Clique: 27
  MIR: 98
  GUB cover: 1
  Zero half: 52
  RLT: 53
  BQP: 5

Explored 1 nodes (71285 simplex iterations) in 50.04 seconds (50.38 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 5 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.800000000000e+01, gap 380.0000%

Wrote result file './lp_solutions/grafo6891.39.sol'

