
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 10:35:46 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7762.46.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/grafo7762.46.lp
Reading time = 0.16 seconds
: 79818 rows, 2470 columns, 241433 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 79818 rows, 2470 columns and 241433 nonzeros
Model fingerprint: 0x8c399e01
Variable types: 48 continuous, 2422 integer (2422 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 9681 rows and 22 columns
Presolve time: 0.61s
Presolved: 70137 rows, 2448 columns, 212698 nonzeros
Variable types: 0 continuous, 2448 integer (2400 binary)
Root relaxation presolved: 2415 rows, 72552 columns, 215146 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   21401    3.8950410e+01   0.000000e+00   7.658241e+03      5s
   40951    3.9000000e+01   0.000000e+00   0.000000e+00     10s
   40951    3.9000000e+01   0.000000e+00   0.000000e+00     10s
   40951    3.9000000e+01   0.000000e+00   0.000000e+00     10s

Root relaxation: objective 3.900000e+01, 40951 iterations, 8.78 seconds (6.86 work units)
Total elapsed time = 19.57s (DegenMoves)
Total elapsed time = 20.18s (DegenMoves)

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

     0     0   39.00000    0  526          -   39.00000      -     -   21s
H    0     0                       7.0000000   39.00000   457%     -   23s
H    0     0                      10.0000000   39.00000   290%     -   23s
H    0     0                      11.0000000   39.00000   255%     -   23s
     0     0   39.00000    0  826   11.00000   39.00000   255%     -   37s
     0     0   38.83333    0  813   11.00000   38.83333   253%     -   40s
     0     0          -    0        11.00000   38.00000   245%     -   50s

Cutting planes:
  Gomory: 5
  Lift-and-project: 36
  Cover: 2
  Clique: 6
  MIR: 123
  StrongCG: 1
  Zero half: 12
  RLT: 53
  BQP: 2
  PSD: 2

Explored 1 nodes (61007 simplex iterations) in 50.16 seconds (30.63 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 11 10 7 

Time limit reached
Best objective 1.100000000000e+01, best bound 3.800000000000e+01, gap 245.4545%

Wrote result file './lp_solutions/grafo7762.46.sol'

