
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 06:30:08 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7435.44.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/grafo7435.44.lp
Reading time = 0.12 seconds
: 73025 rows, 2172 columns, 220667 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 73025 rows, 2172 columns and 220667 nonzeros
Model fingerprint: 0xf97400b7
Variable types: 44 continuous, 2128 integer (2128 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 2.0000000
Presolve removed 11887 rows and 30 columns
Presolve time: 0.49s
Presolved: 61138 rows, 2142 columns, 185413 nonzeros
Variable types: 0 continuous, 2142 integer (2098 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2142 rows, 63280 columns, 187555 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   28609    4.0946522e+01   0.000000e+00   9.992109e+02      5s
   36228    4.1000000e+01   0.000000e+00   0.000000e+00      6s
   36228    4.1000000e+01   0.000000e+00   0.000000e+00      7s

Root relaxation: objective 4.100000e+01, 36228 iterations, 5.93 seconds (5.09 work units)
Total elapsed time = 14.11s (DegenMoves)

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

     0     0   41.00000    0  533   10.00000   41.00000   310%     -   15s
     0     0   41.00000    0  798   10.00000   41.00000   310%     -   25s
     0     0   41.00000    0  789   10.00000   41.00000   310%     -   26s
     0     0   41.00000    0  776   10.00000   41.00000   310%     -   50s

Cutting planes:
  Gomory: 4
  Lift-and-project: 2
  Cover: 13
  Clique: 4
  MIR: 116
  GUB cover: 1
  Zero half: 106
  RLT: 68

Explored 1 nodes (70468 simplex iterations) in 50.06 seconds (42.75 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 2 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.100000000000e+01, gap 310.0000%

Wrote result file './lp_solutions/grafo7435.44.sol'

