
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 04:39:30 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7698.40.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/grafo7698.40.lp
Reading time = 0.11 seconds
: 69014 rows, 1988 columns, 208610 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 69014 rows, 1988 columns and 208610 nonzeros
Model fingerprint: 0xea4d09bb
Variable types: 44 continuous, 1944 integer (1944 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 13189 rows and 43 columns
Presolve time: 0.47s
Presolved: 55825 rows, 1945 columns, 169435 nonzeros
Variable types: 0 continuous, 1945 integer (1901 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 1945 rows, 57770 columns, 171380 nonzeros


Root relaxation: objective 3.600000e+01, 2352 iterations, 0.54 seconds (0.61 work units)
Total elapsed time = 8.27s (DegenMoves)

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

     0     0   36.00000    0  443    8.00000   36.00000   350%     -    9s
H    0     0                      11.0000000   36.00000   227%     -    9s
H    0     0                      12.0000000   36.00000   200%     -    9s
H    0     0                      13.0000000   36.00000   177%     -    9s
     0     0   36.00000    0  680   13.00000   36.00000   177%     -   16s
     0     0   36.00000    0  643   13.00000   36.00000   177%     -   17s
H    0     0                      14.0000000   36.00000   157%     -   34s
     0     0   36.00000    0  413   14.00000   36.00000   157%     -   34s
     0     0   36.00000    0  398   14.00000   36.00000   157%     -   35s
     0     0   36.00000    0  598   14.00000   36.00000   157%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 23
  Clique: 11
  MIR: 124
  StrongCG: 3
  GUB cover: 7
  Zero half: 56
  RLT: 49

Explored 1 nodes (47470 simplex iterations) in 50.06 seconds (44.98 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 14 13 12 ... 2

Time limit reached
Best objective 1.400000000000e+01, best bound 3.600000000000e+01, gap 157.1429%

Wrote result file './lp_solutions/grafo7698.40.sol'

