
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 05:05:26 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2602.38.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/grafo2602.38.lp
Reading time = 0.15 seconds
: 74645 rows, 1728 columns, 225179 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 74645 rows, 1728 columns and 225179 nonzeros
Model fingerprint: 0x4e4b7784
Variable types: 38 continuous, 1690 integer (1690 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 5.0000000
Presolve removed 23681 rows and 16 columns
Presolve time: 0.79s
Presolved: 50964 rows, 1712 columns, 154442 nonzeros
Variable types: 0 continuous, 1712 integer (1674 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 1709 rows, 52673 columns, 156154 nonzeros


Root relaxation: objective 4.200000e+01, 2445 iterations, 0.87 seconds (0.69 work units)
Total elapsed time = 7.66s (DegenMoves)

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

     0     0   42.00000    0  353   10.00000   42.00000   320%     -    9s
H    0     0                      12.0000000   42.00000   250%     -    9s
H    0     0                      13.0000000   42.00000   223%     -   11s
     0     0   42.00000    0  559   13.00000   42.00000   223%     -   16s
H    0     0                      14.0000000   42.00000   200%     -   17s
     0     0   42.00000    0  558   14.00000   42.00000   200%     -   17s
H    0     0                      15.0000000   42.00000   180%     -   35s
     0     0   41.00000    0  549   15.00000   41.00000   173%     -   35s
     0     0   41.00000    0  512   15.00000   41.00000   173%     -   36s
     0     0   41.00000    0  722   15.00000   41.00000   173%     -   50s

Cutting planes:
  Gomory: 2
  Cover: 30
  Clique: 18
  MIR: 100
  StrongCG: 1
  GUB cover: 4
  Zero half: 126
  RLT: 64

Explored 1 nodes (36530 simplex iterations) in 50.09 seconds (32.36 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 15 14 13 ... 5

Time limit reached
Best objective 1.500000000000e+01, best bound 4.100000000000e+01, gap 173.3333%

Wrote result file './lp_solutions/grafo2602.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 09:16:19 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2602.38.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/grafo2602.38.lp
Reading time = 0.12 seconds
: 74645 rows, 1728 columns, 225179 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 74645 rows, 1728 columns and 225179 nonzeros
Model fingerprint: 0x4e4b7784
Variable types: 38 continuous, 1690 integer (1690 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 5.0000000
Presolve removed 23681 rows and 16 columns
Presolve time: 0.52s
Presolved: 50964 rows, 1712 columns, 154442 nonzeros
Variable types: 0 continuous, 1712 integer (1674 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 1709 rows, 52673 columns, 156154 nonzeros


Root relaxation: objective 4.200000e+01, 2445 iterations, 0.60 seconds (0.69 work units)
Total elapsed time = 5.37s (DegenMoves)

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

     0     0   42.00000    0  353   10.00000   42.00000   320%     -    6s
H    0     0                      12.0000000   42.00000   250%     -    6s
H    0     0                      13.0000000   42.00000   223%     -    7s
     0     0   42.00000    0  559   13.00000   42.00000   223%     -   11s
H    0     0                      14.0000000   42.00000   200%     -   11s
     0     0   42.00000    0  558   14.00000   42.00000   200%     -   12s
H    0     0                      15.0000000   42.00000   180%     -   25s
     0     0   41.00000    0  549   15.00000   41.00000   173%     -   25s
     0     0   41.00000    0  512   15.00000   41.00000   173%     -   25s
     0     0   41.00000    0  438   15.00000   41.00000   173%     -   44s
     0     0   41.00000    0  522   15.00000   41.00000   173%     -   46s
     0     0          -    0        15.00000   41.00000   173%     -   50s

Cutting planes:
  Cover: 32
  Clique: 29
  MIR: 113
  StrongCG: 4
  GUB cover: 2
  Zero half: 57
  RLT: 60
  BQP: 2

Explored 1 nodes (50536 simplex iterations) in 50.07 seconds (46.55 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 15 14 13 ... 5

Time limit reached
Best objective 1.500000000000e+01, best bound 4.100000000000e+01, gap 173.3333%

Wrote result file './lp_solutions/grafo2602.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 02:11:40 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2602.38.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/grafo2602.38.lp
Reading time = 0.12 seconds
: 74645 rows, 1728 columns, 225179 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 74645 rows, 1728 columns and 225179 nonzeros
Model fingerprint: 0x4e4b7784
Variable types: 38 continuous, 1690 integer (1690 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 5.0000000
Presolve removed 23681 rows and 16 columns
Presolve time: 0.49s
Presolved: 50964 rows, 1712 columns, 154442 nonzeros
Variable types: 0 continuous, 1712 integer (1674 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 1709 rows, 52673 columns, 156154 nonzeros


Root relaxation: objective 4.200000e+01, 2445 iterations, 0.56 seconds (0.69 work units)
Total elapsed time = 5.18s (DegenMoves)

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

     0     0   42.00000    0  353   10.00000   42.00000   320%     -    6s
H    0     0                      12.0000000   42.00000   250%     -    6s
H    0     0                      13.0000000   42.00000   223%     -    7s
     0     0   42.00000    0  559   13.00000   42.00000   223%     -   11s
H    0     0                      14.0000000   42.00000   200%     -   11s
     0     0   42.00000    0  558   14.00000   42.00000   200%     -   11s
H    0     0                      15.0000000   42.00000   180%     -   24s
     0     0   41.00000    0  549   15.00000   41.00000   173%     -   24s
     0     0   41.00000    0  512   15.00000   41.00000   173%     -   24s
     0     0   41.00000    0  438   15.00000   41.00000   173%     -   43s
     0     0   41.00000    0  522   15.00000   41.00000   173%     -   44s
     0     0   41.00000    0  683   15.00000   41.00000   173%     -   50s

Cutting planes:
  Cover: 32
  Clique: 29
  MIR: 113
  StrongCG: 4
  GUB cover: 2
  Zero half: 57
  RLT: 60
  BQP: 2

Explored 1 nodes (52902 simplex iterations) in 50.06 seconds (49.02 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 15 14 13 ... 5

Time limit reached
Best objective 1.500000000000e+01, best bound 4.100000000000e+01, gap 173.3333%

Wrote result file './lp_solutions/grafo2602.38.sol'

