Trace number 2682903

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
PB/CT 0.1 fixed? (MO) 26.9319 28.9409

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-mps-v2-20-10-ship08l.opb
MD5SUM23a6addbd0d76e2876363785ec8dae3c
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark6.94394
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables128490
Total number of constraints704
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 constraints704
Minimum length of a constraint30
Maximum length of a constraint2550
Number of terms in the objective function 128490
Biggest coefficient in the objective function 435455996723200
Number of bits for the biggest coefficient in the objective function 49
Sum of the numbers in the objective function 204823519821908064
Number of bits of the sum of numbers in the objective function 58
Biggest number in a constraint 435455996723200
Number of bits of the biggest number in a constraint 49
Biggest sum of numbers in a constraint 204823519821908064
Number of bits of the biggest sum of numbers58
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

0.00/0.00	c PB/CT 0.1.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
1.79/1.87	c constraints 704/0 clauses 0/0 units 257
1.79/1.87	c vars 128490
1.89/1.97	c objective 128274 + 0

Verifier Data 

ERROR: no interpretation found !

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2682903-1277486553/watcher-2682903-1277486553 -o /tmp/evaluation-result-2682903-1277486553/solver-2682903-1277486553 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682903-1277486553.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): 2000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.99 0.98 0.97 3/106 28569
/proc/meminfo: memFree=1776464/2059040 swapFree=4140484/4192956
[pid=28569] ppid=28567 vsize=2416 CPUtime=0
/proc/28569/stat : 28569 (pbct) R 28567 28569 27859 0 -1 4202496 293 0 0 0 0 0 0 0 18 0 1 0 89947233 2473984 212 1992294400 134512640 136421960 4294622192 18446744073709551615 135160348 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28569/statm: 604 212 138 467 0 135 0

[startup+0.0259361 s]
/proc/loadavg: 0.99 0.98 0.97 3/106 28569
/proc/meminfo: memFree=1776464/2059040 swapFree=4140484/4192956
[pid=28569] ppid=28567 vsize=3136 CPUtime=0.02
/proc/28569/stat : 28569 (pbct) R 28567 28569 27859 0 -1 4202496 452 0 0 0 2 0 0 0 20 0 1 0 89947233 3211264 371 1992294400 134512640 136421960 4294622192 18446744073709551615 135878161 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28569/statm: 751 338 138 467 0 282 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 3136

[startup+0.100943 s]
/proc/loadavg: 0.99 0.98 0.97 3/106 28569
/proc/meminfo: memFree=1776464/2059040 swapFree=4140484/4192956
[pid=28569] ppid=28567 vsize=5864 CPUtime=0.09
/proc/28569/stat : 28569 (pbct) R 28567 28569 27859 0 -1 4202496 1282 0 0 0 9 0 0 0 20 0 1 0 89947233 6004736 828 1992294400 134512640 136421960 4294622192 18446744073709551615 135378067 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28569/statm: 1466 828 138 467 0 997 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5864

[startup+0.30096 s]
/proc/loadavg: 0.99 0.98 0.97 3/106 28569
/proc/meminfo: memFree=1776464/2059040 swapFree=4140484/4192956
[pid=28569] ppid=28567 vsize=9492 CPUtime=0.29
/proc/28569/stat : 28569 (pbct) R 28567 28569 27859 0 -1 4202496 2724 0 0 0 29 0 0 0 20 0 1 0 89947233 9719808 1820 1992294400 134512640 136421960 4294622192 18446744073709551615 135160348 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28569/statm: 2373 1820 138 467 0 1904 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9492

[startup+0.700998 s]
/proc/loadavg: 0.99 0.98 0.97 3/106 28569
/proc/meminfo: memFree=1776464/2059040 swapFree=4140484/4192956
[pid=28569] ppid=28567 vsize=13504 CPUtime=0.69
/proc/28569/stat : 28569 (pbct) R 28567 28569 27859 0 -1 4202496 3812 0 0 0 68 1 0 0 20 0 1 0 89947233 13828096 2908 1992294400 134512640 136421960 4294622192 18446744073709551615 135524321 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28569/statm: 3376 2908 145 467 0 2907 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 13504

[startup+1.50107 s]
/proc/loadavg: 0.99 0.98 0.97 2/107 28570
/proc/meminfo: memFree=1758972/2059040 swapFree=4140484/4192956
[pid=28569] ppid=28567 vsize=31920 CPUtime=1.49
/proc/28569/stat : 28569 (pbct) R 28567 28569 27859 0 -1 4202496 7942 0 0 0 146 3 0 0 23 0 1 0 89947233 32686080 7038 1992294400 134512640 136421960 4294622192 18446744073709551615 135158965 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28569/statm: 7980 7038 146 467 0 7511 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 31920

[startup+3.10122 s]
/proc/loadavg: 0.99 0.98 0.97 2/107 28570
/proc/meminfo: memFree=1725120/2059040 swapFree=4140484/4192956
[pid=28569] ppid=28567 vsize=129812 CPUtime=3.09
/proc/28569/stat : 28569 (pbct) R 28567 28569 27859 0 -1 4202496 32443 0 0 0 295 14 0 0 25 0 1 0 89947233 132927488 30895 1992294400 134512640 136421960 4294622192 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28569/statm: 32453 30895 195 467 0 31984 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 129812

[startup+6.30052 s]
/proc/loadavg: 0.99 0.98 0.97 2/107 28570
/proc/meminfo: memFree=1499688/2059040 swapFree=4140484/4192956
[pid=28569] ppid=28567 vsize=353204 CPUtime=6.29
/proc/28569/stat : 28569 (pbct) R 28567 28569 27859 0 -1 4202496 91477 0 0 0 589 40 0 0 25 0 1 0 89947233 361680896 85503 1992294400 134512640 136421960 4294622192 18446744073709551615 135801135 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28569/statm: 88301 85504 195 467 0 87832 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 353204

[startup+12.7011 s]
/proc/loadavg: 0.99 0.98 0.97 2/107 28570
/proc/meminfo: memFree=1041632/2059040 swapFree=4140484/4192956
[pid=28569] ppid=28567 vsize=779776 CPUtime=12.69
/proc/28569/stat : 28569 (pbct) R 28567 28569 27859 0 -1 4202496 206000 0 0 0 1181 88 0 0 25 0 1 0 89947233 798490624 192018 1992294400 134512640 136421960 4294622192 18446744073709551615 135818454 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28569/statm: 194944 192019 195 467 0 194475 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 779776

[startup+25.5013 s]
/proc/loadavg: 0.99 0.98 0.97 2/107 28570
/proc/meminfo: memFree=123660/2059040 swapFree=4140484/4192956
[pid=28569] ppid=28567 vsize=1683292 CPUtime=25.49
/proc/28569/stat : 28569 (pbct) R 28567 28569 27859 0 -1 4202496 447996 0 0 0 2359 190 0 0 25 0 1 0 89947233 1723691008 419297 1992294400 134512640 136421960 4294622192 18446744073709551615 135642863 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28569/statm: 420823 419298 195 467 0 420354 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 1683292



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+26.6434 s]
/proc/loadavg: 0.99 0.98 0.97 3/107 28570
/proc/meminfo: memFree=10588/2059040 swapFree=4140484/4192956
[pid=28569] ppid=28567 vsize=1861540 CPUtime=26.74
/proc/28569/stat : 28569 (pbct) R 28567 28569 27859 0 -1 4202496 493623 0 0 0 2457 217 0 0 25 0 1 0 89947233 1906216960 452633 1992294400 134512640 136421960 4294622192 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28569/statm: 465385 452636 196 467 0 464916 0
Current children cumulated CPU time (s) 26.74
Current children cumulated vsize (KiB) 1861540

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

Sending SIGKILL to process tree (bottom up)

Sending SIGKILL to -28569

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

[startup+27.1015 s]
/proc/loadavg: 0.99 0.98 0.97 3/107 28570
/proc/meminfo: memFree=10588/2059040 swapFree=4140484/4192956
[pid=28569] ppid=28567 vsize=1861672 CPUtime=26.74
/proc/28569/stat : 28569 (pbct) S 28567 28569 27859 0 -1 4194304 493653 0 0 0 2457 217 0 0 25 0 1 0 89947233 1906352128 452663 1992294400 134512640 136421960 4294622192 18446744073709551615 135884462 0 16384 4096 16387 18446604437835792448 0 0 17 1 0 0 0
/proc/28569/statm: 465418 452663 197 467 0 464949 0
Current children cumulated CPU time (s) 26.74
Current children cumulated vsize (KiB) 1861672

[startup+27.9015 s]
/proc/loadavg: 0.99 0.98 0.97 1/108 28571
/proc/meminfo: memFree=10604/2059040 swapFree=4139968/4192956
[pid=28569] ppid=28567 vsize=1861672 CPUtime=26.74
/proc/28569/stat : 28569 (pbct) S 28567 28569 27859 0 -1 4194304 493653 0 0 0 2457 217 0 0 25 0 1 0 89947233 1906352128 452663 1992294400 134512640 136421960 4294622192 18446744073709551615 135884462 0 16384 4096 16387 18446604437835792448 0 0 17 1 0 0 0
/proc/28569/statm: 465418 452663 197 467 0 464949 0
Current children cumulated CPU time (s) 26.74
Current children cumulated vsize (KiB) 1861672

[startup+28.7086 s]
/proc/loadavg: 0.99 0.98 0.97 1/108 28571
/proc/meminfo: memFree=10604/2059040 swapFree=4139968/4192956
[pid=28569] ppid=28567 vsize=1861672 CPUtime=26.74
/proc/28569/stat : 28569 (pbct) S 28567 28569 27859 0 -1 4194304 493653 0 0 0 2457 217 0 0 25 0 1 0 89947233 1906352128 452663 1992294400 134512640 136421960 4294622192 18446744073709551615 135884462 0 16384 4096 16387 18446604437835792448 0 0 17 1 0 0 0
/proc/28569/statm: 465418 452663 197 467 0 464949 0
Current children cumulated CPU time (s) 26.74
Current children cumulated vsize (KiB) 1861672

[startup+28.9016 s]
/proc/loadavg: 0.99 0.98 0.97 1/108 28571
/proc/meminfo: memFree=10604/2059040 swapFree=4139968/4192956
[pid=28569] ppid=28567 vsize=0 CPUtime=26.88
/proc/28569/stat : 28569 (pbct) R 28567 28569 27859 0 -1 4195332 493653 0 0 0 2457 231 0 0 18 0 1 0 89947233 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/28569/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 26.88
Current children cumulated vsize (KiB) 0

Child ended because it received signal 9 (SIGKILL)
Real time (s): 28.9409
CPU time (s): 26.9319
CPU user time (s): 24.5753
CPU system time (s): 2.35664
CPU usage (%): 93.0584
Max. virtual memory (cumulated for all children) (KiB): 1861672

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 24.5753
system time used= 2.35664
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 493653
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= 2
involuntary context switches= 26

runsolver used 0.055991 second user time and 0.147977 second system time

The end

Launcher Data 

Begin job on node048 at 2010-06-25 19:22:33
IDJOB=2682903
IDBENCH=2397
IDSOLVER=1192
FILE ID=node048/2682903-1277486553
PBS_JOBID= 11190498
Free space on /tmp= 62488 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-ship08l.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682903-1277486553/watcher-2682903-1277486553 -o /tmp/evaluation-result-2682903-1277486553/solver-2682903-1277486553 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682903-1277486553.opb

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 23a6addbd0d76e2876363785ec8dae3c
RANDOM SEED=1272828037

node048.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/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		: 3000.212
cache size	: 2048 KB
physical id	: 0
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 0
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 6000.42
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		: 3000.212
cache size	: 2048 KB
physical id	: 3
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 6
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5599.46
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1776992 kB
Buffers:         52192 kB
Cached:         128748 kB
SwapCached:       5400 kB
Active:          78128 kB
Inactive:       115888 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1776992 kB
SwapTotal:     4192956 kB
SwapFree:      4140484 kB
Dirty:            9832 kB
Writeback:           4 kB
AnonPages:       11640 kB
Mapped:          11984 kB
Slab:            66180 kB
PageTables:       4148 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   183196 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264948 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62484 MiB
End job on node048 at 2010-06-25 19:23:03