--- Job stein45 Start 07/18/08 17:54:40 GAMS Rev 227 Copyright (C) 1987-2008 GAMS Development. All rights reserved Licensee: Stefan Vigerske G071106/0001CB-LNX Humboldt University Berlin, Numerical Mathematics DC5918 --- Starting compilation --- stein45.gms(106) 2 Mb --- GDXin=/home/stefan/work/gams/models/LINlib/stein45.gdx --- stein45.gms(148) 3 Mb --- Starting execution: elapsed 0:00:00.018 --- stein45.gms(123) 4 Mb --- Generating MIP model m --- stein45.gms(124) 4 Mb --- 332 rows 46 columns 1,080 non-zeroes --- 45 discrete-columns --- stein45.gms(124) 4 Mb --- Executing Cbc: elapsed 0:00:00.025 GAMS/Cbc 2.1 LP/MIP Solver written by J. Forrest Reading parameter(s) from "/home/stefan/work/gams/benchmarks/LINLib.MIP/cbc.op2" >> threads 2 Finished reading from "/home/stefan/work/gams/benchmarks/LINLib.MIP/cbc.op2" Problem statistics: 45 columns and 331 rows. 45 variables have integrality restrictions. Calling CBC main solution routine... Coin Cbc and Clp Solver version 2.10.00, build Jul 15 2008 command line - GAMS/CBC -threads 2 -solve -quit threads was changed from 0 to 2 Continuous objective value is 22 - 0.00 seconds processed model has 331 rows, 45 columns (45 integer) and 1034 elements Objective coefficients multiple of 1 Cutoff increment increased from 1e-05 to 0.999 Pass 1: suminf. 11.33333 obj. 22.3333 iterations 17 Pass 2: suminf. 0.00000 obj. 39 iterations 82 Solution found of 39 Before mini branch and bound, 10 integers at bound fixed and 0 continuous Full problem 331 rows 45 columns, reduced to 152 rows 35 columns Mini branch and bound improved solution from 39 to 31 (0.18 seconds) Round again with cutoff of 30.1 Pass 3: suminf. 11.33333 obj. 22.3333 iterations 17 Pass 4: suminf. 5.23333 obj. 30.1 iterations 75 Pass 5: suminf. 3.33478 obj. 30.1 iterations 34 Pass 6: suminf. 1.42500 obj. 30.1 iterations 8 Pass 7: suminf. 1.42500 obj. 30.1 iterations 17 Pass 8: suminf. 9.00000 obj. 27 iterations 81 Pass 9: suminf. 6.55000 obj. 30.1 iterations 46 Pass 10: suminf. 3.56667 obj. 30.1 iterations 22 Pass 11: suminf. 2.10000 obj. 30.1 iterations 14 Pass 12: suminf. 1.90000 obj. 30.1 iterations 9 Pass 13: suminf. 0.10000 obj. 30.1 iterations 28 Solution found of 30 Before mini branch and bound, 0 integers at bound fixed and 0 continuous Full problem 331 rows 45 columns, reduced to 331 rows 45 columns - too large Mini branch and bound did not improve solution (0.21 seconds) After 0.21 seconds - Feasibility pump exiting with objective of 1 - took 0.21 seconds Integer solution of 39 found by feasibility pump after 0 iterations and 0 nodes (0.22 seconds) Full problem 331 rows 45 columns, reduced to 93 rows 24 columns Integer solution of 31 found by combine solutions after 0 iterations and 0 nodes (0.27 seconds) 11 added rows had average density of 36.1818 At root node, 11 cuts changed objective from 22 to 22 in 100 passes Cut generator 0 (Probing) - 0 row cuts (0 active), 0 column cuts in 0.136 seconds - new frequency is 10 Cut generator 1 (Gomory) - 1676 row cuts (11 active), 0 column cuts in 0.076 seconds - new frequency is 1 Cut generator 2 (Knapsack) - 0 row cuts (0 active), 0 column cuts in 0.048 seconds - new frequency is -100 Cut generator 3 (Clique) - 0 row cuts (0 active), 0 column cuts in 0.012 seconds - new frequency is -100 Cut generator 4 (MixedIntegerRounding2) - 0 row cuts (0 active), 0 column cuts in 0.084 seconds - new frequency is -100 Cut generator 5 (FlowCover) - 0 row cuts (0 active), 0 column cuts in 0.008 seconds - new frequency is -100 Cut generator 6 (TwoMirCuts) - 236 row cuts (0 active), 0 column cuts in 0.040 seconds - new frequency is -100 After 0 nodes, 1 on tree, 31 best solution, best possible 22 (1.88 seconds) Cbc0038I Full problem 331 rows 45 columns, reduced to 93 rows 24 columns Cbc0038I Full problem 331 rows 45 columns, reduced to 268 rows 39 columns - too large Solved to optimality. wallclocktime: 42.1239 used seconds: 80.93 MIP solution: 30 (9066 nodes, 80.93 seconds) Best possible: 30 Absolute gap: 0 (absolute tolerance optca: 0) Relative gap: 0 (relative tolerance optcr: 0) --- Restarting execution --- stein45.gms(124) 0 Mb --- Reading solution for model m *** Status: Normal completion --- Job stein45.gms Stop 07/18/08 17:55:22 elapsed 0:00:42.173