--- Job p0282 Start 07/18/08 15:00:52 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 --- p0282.gms(106) 2 Mb --- GDXin=/home/stefan/work/gams/models/LINlib/p0282.gdx --- p0282.gms(148) 3 Mb --- Starting execution: elapsed 0:00:00.007 --- p0282.gms(123) 4 Mb --- Generating MIP model m --- p0282.gms(124) 4 Mb --- 242 rows 283 columns 2,249 non-zeroes --- 282 discrete-columns --- p0282.gms(124) 4 Mb --- Executing Cbc: elapsed 0:00:00.017 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: 282 columns and 241 rows. 282 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 176868 - 0.00 seconds processed model has 161 rows, 202 columns (202 integer) and 1284 elements Objective coefficients multiple of 1 Cutoff increment increased from 1e-05 to 0.999 Pass 1: suminf. 1.97059 obj. 228825 iterations 18 Solution found of 564656 Before mini branch and bound, 177 integers at bound fixed and 0 continuous Mini branch and bound did not improve solution (0.02 seconds) After 0.02 seconds - Feasibility pump exiting with objective of 10 - took 0.02 seconds Integer solution of 564656 found by feasibility pump after 0 iterations and 0 nodes (0.02 seconds) Full problem 161 rows 202 columns, reduced to 31 rows 53 columns Integer solution of 263193 found by combine solutions after 0 iterations and 0 nodes (0.06 seconds) 58 added rows had average density of 35.8793 At root node, 58 cuts changed objective from 180000 to 257601 in 100 passes Cut generator 0 (Probing) - 213 row cuts (8 active), 2 column cuts in 2.648 seconds - new frequency is 1 Cut generator 1 (Gomory) - 1270 row cuts (16 active), 0 column cuts in 0.196 seconds - new frequency is 1 Cut generator 2 (Knapsack) - 698 row cuts (21 active), 0 column cuts in 0.076 seconds - new frequency is 1 Cut generator 3 (Clique) - 0 row cuts (0 active), 0 column cuts in 0.016 seconds - new frequency is -100 Cut generator 4 (MixedIntegerRounding2) - 681 row cuts (6 active), 0 column cuts in 0.072 seconds - new frequency is 1 Cut generator 5 (FlowCover) - 0 row cuts (0 active), 0 column cuts in 0.024 seconds - new frequency is -100 Cut generator 6 (TwoMirCuts) - 724 row cuts (7 active), 0 column cuts in 0.096 seconds - new frequency is -100 After 0 nodes, 1 on tree, 263193 best solution, best possible 257601 (3.93 seconds) Cbc0038I Full problem 161 rows 202 columns, reduced to 37 rows 53 columns Cbc0012I Integer solution of 258710 found by combine solutions after 3682 iterations and 26 nodes (4.47 seconds) Cbc0004I Integer solution of 258411 found after 3794 iterations and 28 nodes (4.48 seconds) Cbc0038I Full problem 161 rows 202 columns, reduced to 29 rows 49 columns Solved to optimality. wallclocktime: 4.31236 used seconds: 4.54 MIP solution: 258411 (30 nodes, 4.54 seconds) Best possible: 258411 Absolute gap: 0 (absolute tolerance optca: 0) Relative gap: 0 (relative tolerance optcr: 0) --- Restarting execution --- p0282.gms(124) 0 Mb --- Reading solution for model m *** Status: Normal completion --- Job p0282.gms Stop 07/18/08 15:00:56 elapsed 0:00:04.355