Trace number 362354

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds, and are wall clock time (not CPU time).

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerObjective functionCPU timeWall clock time
glpPB 0.2? (exit code) 2.49662 2.49935

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/plato.asu.edu/
pub/fctp/normalized-reduced-mps-v2-20-10-ran10x10a.opb
MD5SUM1a5dd226c84aa8cc751cd6025cf57c5b
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark20
Best CPU time to get the best result obtained on this benchmark8.97263
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 20
Optimality of the best value was proved YES
Number of variables3100
Total number of constraints120
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints120
Minimum length of a constraint31
Maximum length of a constraint300
Number of terms in the objective function 3100
Biggest coefficient in the objective function 4599
Number of bits for the biggest coefficient in the objective function 13
Sum of the numbers in the objective function 526310
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 262144
Number of bits of the biggest number in a constraint 19
Biggest sum of numbers in a constraint 526310
Number of bits of the biggest sum of numbers20
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data (download as text)

0.00/0.00	c glpPB 0.2 (July 2006)
0.00/0.00	c An Application of GLPK 4.10 for PB Constraints
0.00/0.00	c Done @ University of Michigan, Ann Arbor, MI
0.00/0.00	c  by Hossein Sheini
2.39/2.49	c starting to Solve
2.39/2.49	Assertion failed: x >= lb; file glpmip2.c; line 230

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/362354-1177011179/instance-362354-1177011179.opb is already a linear file

Watcher Data (download as text)

runsolver version 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node45/watcher-362354-1177011179 -o ROOT/results/node45/solver-362354-1177011179 -C 1800 -W 3600 -M 1800 --output-limit 1,15 glpPBv3 /tmp/evaluation/362354-1177011179/instance-362354-1177011179.opb 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 3600 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.00 0.99 3/77 1148
/proc/meminfo: memFree=1737600/2055920 swapFree=4157496/4192956
[pid=1148] ppid=1146 vsize=2644 CPUtime=0
/proc/1148/stat : 1148 (glpPBv3) R 1146 1148 982 0 -1 0 260 0 0 0 0 0 0 0 18 0 1 0 55963498 2707456 230 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 5193431 0 0 4096 0 0 0 0 17 1 0 0
/proc/1148/statm: 661 230 192 40 0 76 0

[startup+0.080657 s]
/proc/loadavg: 1.00 1.00 0.99 3/77 1148
/proc/meminfo: memFree=1737600/2055920 swapFree=4157496/4192956
[pid=1148] ppid=1146 vsize=4768 CPUtime=0.07
/proc/1148/stat : 1148 (glpPBv3) R 1146 1148 982 0 -1 0 874 0 0 0 7 0 0 0 18 0 1 0 55963498 4882432 796 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 134543236 0 0 4096 0 0 0 0 17 1 0 0
/proc/1148/statm: 1192 796 227 40 0 607 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 4768

[startup+0.102658 s]
/proc/loadavg: 1.00 1.00 0.99 3/77 1148
/proc/meminfo: memFree=1737600/2055920 swapFree=4157496/4192956
[pid=1148] ppid=1146 vsize=4768 CPUtime=0.09
/proc/1148/stat : 1148 (glpPBv3) R 1146 1148 982 0 -1 0 878 0 0 0 9 0 0 0 18 0 1 0 55963498 4882432 800 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 134542134 0 0 4096 0 0 0 0 17 1 0 0
/proc/1148/statm: 1192 800 227 40 0 607 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4768

[startup+0.301678 s]
/proc/loadavg: 1.00 1.00 0.99 3/77 1148
/proc/meminfo: memFree=1737600/2055920 swapFree=4157496/4192956
[pid=1148] ppid=1146 vsize=4768 CPUtime=0.29
/proc/1148/stat : 1148 (glpPBv3) R 1146 1148 982 0 -1 0 880 0 0 0 29 0 0 0 19 0 1 0 55963498 4882432 802 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/1148/statm: 1192 802 227 40 0 607 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4768

[startup+0.702719 s]
/proc/loadavg: 1.00 1.00 0.99 3/77 1148
/proc/meminfo: memFree=1737600/2055920 swapFree=4157496/4192956
[pid=1148] ppid=1146 vsize=4768 CPUtime=0.69
/proc/1148/stat : 1148 (glpPBv3) R 1146 1148 982 0 -1 0 883 0 0 0 69 0 0 0 23 0 1 0 55963498 4882432 805 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 134629287 0 0 4096 0 0 0 0 17 1 0 0
/proc/1148/statm: 1192 805 227 40 0 607 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4768

[startup+1.5018 s]
/proc/loadavg: 1.00 1.00 0.99 2/78 1149
/proc/meminfo: memFree=1735224/2055920 swapFree=4157496/4192956
[pid=1148] ppid=1146 vsize=4768 CPUtime=1.49
/proc/1148/stat : 1148 (glpPBv3) R 1146 1148 982 0 -1 0 889 0 0 0 149 0 0 0 25 0 1 0 55963498 4882432 811 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/1148/statm: 1192 811 227 40 0 607 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 4768

Solver just ended. Dumping a history of the last processes samples

[startup+1.90184 s]
/proc/loadavg: 1.00 1.00 0.99 2/78 1149
/proc/meminfo: memFree=1735224/2055920 swapFree=4157496/4192956
[pid=1148] ppid=1146 vsize=4768 CPUtime=1.89
/proc/1148/stat : 1148 (glpPBv3) R 1146 1148 982 0 -1 0 893 0 0 0 189 0 0 0 25 0 1 0 55963498 4882432 815 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 134542140 0 0 4096 0 0 0 0 17 1 0 0
/proc/1148/statm: 1192 815 227 40 0 607 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 4768

[startup+2.30188 s]
/proc/loadavg: 1.00 1.00 0.99 2/78 1149
/proc/meminfo: memFree=1734968/2055920 swapFree=4157496/4192956
[pid=1148] ppid=1146 vsize=4768 CPUtime=2.29
/proc/1148/stat : 1148 (glpPBv3) R 1146 1148 982 0 -1 0 943 0 0 0 229 0 0 0 25 0 1 0 55963498 4882432 816 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 134629115 0 0 4096 0 0 0 0 17 1 0 0
/proc/1148/statm: 1192 816 227 40 0 607 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 4768

[startup+2.40189 s]
/proc/loadavg: 1.00 1.00 0.99 2/78 1149
/proc/meminfo: memFree=1734968/2055920 swapFree=4157496/4192956
[pid=1148] ppid=1146 vsize=4768 CPUtime=2.39
/proc/1148/stat : 1148 (glpPBv3) R 1146 1148 982 0 -1 0 957 0 0 0 239 0 0 0 25 0 1 0 55963498 4882432 816 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/1148/statm: 1192 816 227 40 0 607 0
Current children cumulated CPU time (s) 2.39
Current children cumulated vsize (KiB) 4768

Child status: 1
Real time (s): 2.49935
CPU time (s): 2.49662
CPU user time (s): 2.48862
CPU system time (s): 0.007998
CPU usage (%): 99.8905
Max. virtual memory (cumulated for all children) (KiB): 4768

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.48862
system time used= 0.007998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 974
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 12
involuntary context switches= 2

runsolver used 0.002999 second user time and 0.012998 second system time

The end

Launcher Data (download as text)

Begin job on node45 on Thu Apr 19 19:32:59 UTC 2007

IDJOB= 362354
IDBENCH= 1553
IDSOLVER= 166
FILE ID= node45/362354-1177011179

PBS_JOBID= 4630542

Free space on /tmp= 66445 MiB

SOLVER NAME= glpPB 0.2
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/plato.asu.edu/pub/fctp/normalized-reduced-mps-v2-20-10-ran10x10a.opb
COMMAND LINE= glpPBv3 /tmp/evaluation/362354-1177011179/instance-362354-1177011179.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node45/convwatcher-362354-1177011179 -o ROOT/results/node45/conversion-362354-1177011179 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/362354-1177011179/instance-362354-1177011179.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node45/watcher-362354-1177011179 -o ROOT/results/node45/solver-362354-1177011179 -C 1800 -W 3600 -M 1800 --output-limit 1,15  glpPBv3 /tmp/evaluation/362354-1177011179/instance-362354-1177011179.opb

META MD5SUM SOLVER= 9ebec3e8d890fdeefad01654ad9b68b7
MD5SUM BENCH=  1a5dd226c84aa8cc751cd6025cf57c5b

RANDOM SEED= 600547728

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node45.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.218
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.218
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1738008 kB
Buffers:         37600 kB
Cached:         213588 kB
SwapCached:      15576 kB
Active:         135492 kB
Inactive:       140404 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1738008 kB
SwapTotal:     4192956 kB
SwapFree:      4157496 kB
Dirty:            2432 kB
Writeback:           0 kB
Mapped:          31836 kB
Slab:            27544 kB
Committed_AS:  1177468 kB
PageTables:       1732 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66445 MiB

End job on node45 on Thu Apr 19 19:33:01 UTC 2007