
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 05:23:02 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2863.40.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/grafo2863.40.lp
Reading time = 0.13 seconds
: 61016 rows, 1962 columns, 184553 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 61016 rows, 1962 columns and 184553 nonzeros
Model fingerprint: 0x86653bbb
Variable types: 43 continuous, 1919 integer (1919 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 10132 rows and 34 columns
Presolve time: 0.60s
Presolved: 50884 rows, 1928 columns, 154547 nonzeros
Variable types: 0 continuous, 1928 integer (1885 binary)
Found heuristic solution: objective 4.0000000
Root relaxation presolved: 28663 rows, 24149 columns, 110105 nonzeros


Root relaxation: objective 4.100000e+01, 3667 iterations, 2.52 seconds (1.66 work units)
Total elapsed time = 7.12s (DegenMoves)

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

     0     0   41.00000    0  511    4.00000   41.00000   925%     -    7s
H    0     0                       8.0000000   41.00000   412%     -    7s
H    0     0                       9.0000000   41.00000   356%     -    7s
     0     0   41.00000    0  792    9.00000   41.00000   356%     -   20s
H    0     0                      10.0000000   41.00000   310%     -   20s
     0     0   41.00000    0  752   10.00000   41.00000   310%     -   21s
     0     0   40.00000    0  645   10.00000   40.00000   300%     -   50s

Cutting planes:
  Gomory: 3
  Cover: 13
  Clique: 1
  MIR: 132
  Zero half: 57
  RLT: 56

Explored 1 nodes (39282 simplex iterations) in 50.10 seconds (33.30 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 10 9 8 4 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.000000000000e+01, gap 300.0000%

Wrote result file './lp_solutions/grafo2863.40.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 04:00:57 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2863.40.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/grafo2863.40.lp
Reading time = 0.10 seconds
: 61016 rows, 1962 columns, 184553 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 61016 rows, 1962 columns and 184553 nonzeros
Model fingerprint: 0x86653bbb
Variable types: 43 continuous, 1919 integer (1919 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 10132 rows and 34 columns
Presolve time: 0.39s
Presolved: 50884 rows, 1928 columns, 154547 nonzeros
Variable types: 0 continuous, 1928 integer (1885 binary)
Found heuristic solution: objective 4.0000000
Root relaxation presolved: 28663 rows, 24149 columns, 110105 nonzeros


Root relaxation: objective 4.100000e+01, 3667 iterations, 1.69 seconds (1.66 work units)
Total elapsed time = 5.00s (DegenMoves)

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

     0     0   41.00000    0  511    4.00000   41.00000   925%     -    5s
H    0     0                       8.0000000   41.00000   412%     -    5s
H    0     0                       9.0000000   41.00000   356%     -    5s
     0     0   41.00000    0  792    9.00000   41.00000   356%     -   14s
H    0     0                      10.0000000   41.00000   310%     -   14s
     0     0   41.00000    0  752   10.00000   41.00000   310%     -   15s
H    0     0                      11.0000000   40.00000   264%     -   46s
H    0     0                      13.0000000   40.00000   208%     -   46s
     0     0   40.00000    0  474   13.00000   40.00000   208%     -   46s
     0     0   40.00000    0  447   13.00000   40.00000   208%     -   47s
H    0     0                      14.0000000   40.00000   186%     -   47s
     0     0          -    0        14.00000   40.00000   186%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 29
  Clique: 4
  MIR: 153
  GUB cover: 8
  Zero half: 54
  RLT: 55

Explored 1 nodes (54841 simplex iterations) in 50.08 seconds (48.40 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 14 13 11 ... 4

Time limit reached
Best objective 1.400000000000e+01, best bound 4.000000000000e+01, gap 185.7143%

Wrote result file './lp_solutions/grafo2863.40.sol'

