
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 04:32:31 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3923.35.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/grafo3923.35.lp
Reading time = 0.15 seconds
: 89303 rows, 1600 columns, 269131 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 89303 rows, 1600 columns and 269131 nonzeros
Model fingerprint: 0x82132a9b
Variable types: 38 continuous, 1562 integer (1562 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 1.0000000
Presolve removed 32286 rows and 28 columns
Presolve time: 0.66s
Presolved: 57017 rows, 1572 columns, 172522 nonzeros
Variable types: 0 continuous, 1572 integer (1534 binary)
Found heuristic solution: objective 3.0000000
Root relaxation presolved: 1572 rows, 58589 columns, 174094 nonzeros


Root relaxation: objective 3.400000e+01, 2688 iterations, 0.74 seconds (0.92 work units)
Total elapsed time = 7.61s (DegenMoves)

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

     0     0   34.00000    0  613    3.00000   34.00000  1033%     -    8s
H    0     0                       6.0000000   34.00000   467%     -    8s
H    0     0                       8.0000000   34.00000   325%     -    8s
     0     0   34.00000    0  878    8.00000   34.00000   325%     -   23s
H    0     0                       9.0000000   34.00000   278%     -   23s
     0     0   34.00000    0  857    9.00000   34.00000   278%     -   23s
     0     0   34.00000    0  295    9.00000   34.00000   278%     -   39s
     0     0   34.00000    0  289    9.00000   34.00000   278%     -   39s
     0     0   34.00000    0  564    9.00000   34.00000   278%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 40
  Clique: 14
  MIR: 160
  GUB cover: 10
  Zero half: 56
  RLT: 46

Explored 1 nodes (40755 simplex iterations) in 50.06 seconds (46.08 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 9 8 6 ... 1

Time limit reached
Best objective 9.000000000000e+00, best bound 3.400000000000e+01, gap 277.7778%

Wrote result file './lp_solutions/grafo3923.35.sol'

