
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 08:30:37 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7543.43.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/grafo7543.43.lp
Reading time = 0.16 seconds
: 94636 rows, 2243 columns, 285640 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 94636 rows, 2243 columns and 285640 nonzeros
Model fingerprint: 0x9388b6f9
Variable types: 45 continuous, 2198 integer (2198 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 25554 rows and 28 columns
Presolve time: 0.65s
Presolved: 69082 rows, 2215 columns, 209385 nonzeros
Variable types: 0 continuous, 2215 integer (2170 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2212 rows, 71294 columns, 211600 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   24485    4.5704716e+01   0.000000e+00   7.876493e+03      5s
   48300    4.6000000e+01   0.000000e+00   0.000000e+00     10s
   48300    4.6000000e+01   0.000000e+00   0.000000e+00     10s
   48300    4.6000000e+01   0.000000e+00   0.000000e+00     10s

Root relaxation: objective 4.600000e+01, 48300 iterations, 9.17 seconds (7.32 work units)
Total elapsed time = 21.26s (DegenMoves)

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

     0     0   46.00000    0  589   10.00000   46.00000   360%     -   23s
H    0     0                      11.0000000   46.00000   318%     -   23s
     0     0   46.00000    0  852   11.00000   46.00000   318%     -   37s
     0     0   46.00000    0  841   11.00000   46.00000   318%     -   39s
     0     0          -    0        11.00000   46.00000   318%     -   50s

Cutting planes:
  Gomory: 3
  Lift-and-project: 1
  Cover: 13
  Clique: 20
  MIR: 144
  StrongCG: 1
  GUB cover: 1
  Zero half: 91
  RLT: 88

Explored 1 nodes (76396 simplex iterations) in 50.08 seconds (43.41 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 11 10 3 

Time limit reached
Best objective 1.100000000000e+01, best bound 4.600000000000e+01, gap 318.1818%

Wrote result file './lp_solutions/grafo7543.43.sol'

