
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 02:59:40 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11437.36.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/grafo11437.36.lp
Reading time = 0.11 seconds
: 55223 rows, 1753 columns, 167091 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 55223 rows, 1753 columns and 167091 nonzeros
Model fingerprint: 0x4ea93173
Variable types: 41 continuous, 1712 integer (1712 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 4.0000000
Presolve removed 11933 rows and 19 columns
Presolve time: 0.60s
Presolved: 43290 rows, 1734 columns, 131699 nonzeros
Variable types: 0 continuous, 1734 integer (1693 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 25490 rows, 19534 columns, 96099 nonzeros


Root relaxation: objective 4.000000e+01, 1331 iterations, 0.61 seconds (0.33 work units)

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

     0     0   40.00000    0  286    6.00000   40.00000   567%     -    2s
H    0     0                       7.0000000   40.00000   471%     -    2s
H    0     0                      11.0000000   40.00000   264%     -    3s
H    0     0                      12.0000000   40.00000   233%     -    3s
H    0     0                      13.0000000   40.00000   208%     -    3s
     0     0   40.00000    0  610   13.00000   40.00000   208%     -    8s
H    0     0                      14.0000000   40.00000   186%     -    8s
     0     0   40.00000    0  615   14.00000   40.00000   186%     -    9s
     0     0   39.00000    0  450   14.00000   39.00000   179%     -   21s
     0     0   39.00000    0  414   14.00000   39.00000   179%     -   22s
H    0     0                      15.0000000   39.00000   160%     -   45s
H    0     0                      16.0000000   39.00000   144%     -   45s
     0     0   39.00000    0  601   16.00000   39.00000   144%     -   45s
     0     0   39.00000    0  540   16.00000   39.00000   144%     -   47s
     0     0          -    0        16.00000   39.00000   144%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 12
  Clique: 6
  MIR: 127
  StrongCG: 1
  GUB cover: 1
  Zero half: 26
  RLT: 60

Explored 1 nodes (39795 simplex iterations) in 50.06 seconds (31.04 work units)
Thread count was 8 (of 8 available processors)

Solution count 9: 16 15 14 ... 4

Time limit reached
Best objective 1.600000000000e+01, best bound 3.900000000000e+01, gap 143.7500%

Wrote result file './lp_solutions/grafo11437.36.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 07:00:36 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11437.36.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/grafo11437.36.lp
Reading time = 0.09 seconds
: 55223 rows, 1753 columns, 167091 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 55223 rows, 1753 columns and 167091 nonzeros
Model fingerprint: 0x4ea93173
Variable types: 41 continuous, 1712 integer (1712 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 4.0000000
Presolve removed 11933 rows and 19 columns
Presolve time: 0.38s
Presolved: 43290 rows, 1734 columns, 131699 nonzeros
Variable types: 0 continuous, 1734 integer (1693 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 25490 rows, 19534 columns, 96099 nonzeros


Root relaxation: objective 4.000000e+01, 1331 iterations, 0.37 seconds (0.33 work units)

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

     0     0   40.00000    0  286    6.00000   40.00000   567%     -    1s
H    0     0                       7.0000000   40.00000   471%     -    1s
H    0     0                      11.0000000   40.00000   264%     -    2s
H    0     0                      12.0000000   40.00000   233%     -    2s
H    0     0                      13.0000000   40.00000   208%     -    2s
     0     0   40.00000    0  610   13.00000   40.00000   208%     -    5s
H    0     0                      14.0000000   40.00000   186%     -    5s
     0     0   40.00000    0  615   14.00000   40.00000   186%     -    5s
     0     0   39.00000    0  450   14.00000   39.00000   179%     -   14s
     0     0   39.00000    0  414   14.00000   39.00000   179%     -   14s
H    0     0                      15.0000000   39.00000   160%     -   30s
H    0     0                      16.0000000   39.00000   144%     -   30s
     0     0   39.00000    0  601   16.00000   39.00000   144%     -   30s
     0     0   39.00000    0  540   16.00000   39.00000   144%     -   32s
H    0     0                      17.0000000   39.00000   129%     -   47s
H    0     0                      18.0000000   39.00000   117%     -   47s
     0     0   39.00000    0  434   18.00000   39.00000   117%     -   47s
     0     0   39.00000    0  416   18.00000   39.00000   117%     -   48s
     0     0          -    0        18.00000   39.00000   117%     -   50s

Cutting planes:
  Gomory: 3
  Cover: 27
  Clique: 6
  MIR: 141
  StrongCG: 2
  GUB cover: 1
  Zero half: 62
  RLT: 64
  BQP: 1

Explored 1 nodes (59367 simplex iterations) in 50.06 seconds (47.07 work units)
Thread count was 8 (of 8 available processors)

Solution count 10: 18 17 16 ... 6

Time limit reached
Best objective 1.800000000000e+01, best bound 3.900000000000e+01, gap 116.6667%

Wrote result file './lp_solutions/grafo11437.36.sol'

