Trace number 2668681

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? (MO) 110.042 57.3043

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/plato.asu.edu/
pub/fctp/normalized-mps-v2-20-10-n3702.opb
MD5SUMd696f4100af4494c851a4f1a4044ecb8
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmark
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 4827154397
Optimality of the best value was proved NO
Number of variables155000
Total number of constraints5150
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 constraints5150
Minimum length of a constraint31
Maximum length of a constraint3000
Number of terms in the objective function 155000
Biggest coefficient in the objective function 4294967296
Number of bits for the biggest coefficient in the objective function 33
Sum of the numbers in the objective function 29701186548799
Number of bits of the sum of numbers in the objective function 45
Biggest number in a constraint 4294967296
Number of bits of the biggest number in a constraint 33
Biggest sum of numbers in a constraint 29701186548799
Number of bits of the biggest sum of numbers45
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 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
2.79/2.82	c constraints 5150/0 clauses 0/0 units 59761
2.79/2.82	c vars 155000
30.28/30.33	c objective 123004 + 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-2668681-1276518006/watcher-2668681-1276518006 -o /tmp/evaluation-result-2668681-1276518006/solver-2668681-1276518006 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668681-1276518006.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 1.00 3/106 28395
/proc/meminfo: memFree=1762872/2059040 swapFree=4140200/4192956
[pid=28395] ppid=28393 vsize=2488 CPUtime=0
/proc/28395/stat : 28395 (pbct) R 28393 28395 27737 0 -1 4202496 306 0 0 0 0 0 0 0 20 0 1 0 27404570 2547712 229 1992294400 134512640 136485738 4292222608 18446744073709551615 135178844 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28395/statm: 622 229 151 482 0 138 0

[startup+0.0843771 s]
/proc/loadavg: 0.99 0.98 1.00 3/106 28395
/proc/meminfo: memFree=1762872/2059040 swapFree=4140200/4192956
[pid=28395] ppid=28393 vsize=5248 CPUtime=0.07
/proc/28395/stat : 28395 (pbct) R 28393 28395 27737 0 -1 4202496 1017 0 0 0 7 0 0 0 20 0 1 0 27404570 5373952 793 1992294400 134512640 136485738 4292222608 18446744073709551615 135178825 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28395/statm: 1312 798 151 482 0 828 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 5248

[startup+0.101377 s]
/proc/loadavg: 0.99 0.98 1.00 3/106 28395
/proc/meminfo: memFree=1762872/2059040 swapFree=4140200/4192956
[pid=28395] ppid=28393 vsize=5936 CPUtime=0.09
/proc/28395/stat : 28395 (pbct) R 28393 28395 27737 0 -1 4202496 1325 0 0 0 9 0 0 0 20 0 1 0 27404570 6078464 875 1992294400 134512640 136485738 4292222608 18446744073709551615 134531157 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28395/statm: 1484 875 151 482 0 1000 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5936

[startup+0.300393 s]
/proc/loadavg: 0.99 0.98 1.00 3/106 28395
/proc/meminfo: memFree=1762872/2059040 swapFree=4140200/4192956
[pid=28395] ppid=28393 vsize=9960 CPUtime=0.29
/proc/28395/stat : 28395 (pbct) R 28393 28395 27737 0 -1 4202496 2918 0 0 0 28 1 0 0 20 0 1 0 27404570 10199040 2018 1992294400 134512640 136485738 4292222608 18446744073709551615 135171939 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28395/statm: 2490 2018 151 482 0 2006 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9960

[startup+0.700426 s]
/proc/loadavg: 0.99 0.98 1.00 3/106 28395
/proc/meminfo: memFree=1762872/2059040 swapFree=4140200/4192956
[pid=28395] ppid=28393 vsize=16564 CPUtime=0.69
/proc/28395/stat : 28395 (pbct) R 28393 28395 27737 0 -1 4202496 4849 0 0 0 67 2 0 0 21 0 1 0 27404570 16961536 2922 1992294400 134512640 136485738 4292222608 18446744073709551615 135848339 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28395/statm: 4141 2922 155 482 0 3657 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 16564

[startup+1.50149 s]
/proc/loadavg: 0.99 0.98 1.00 2/107 28396
/proc/meminfo: memFree=1746000/2059040 swapFree=4140200/4192956
[pid=28395] ppid=28393 vsize=33968 CPUtime=1.49
/proc/28395/stat : 28395 (pbct) R 28393 28395 27737 0 -1 4202496 8858 0 0 0 146 3 0 0 23 0 1 0 27404570 34783232 6931 1992294400 134512640 136485738 4292222608 18446744073709551615 134540188 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28395/statm: 8492 6931 155 482 0 8008 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 33968

[startup+3.10162 s]
/proc/loadavg: 0.99 0.98 1.00 2/107 28396
/proc/meminfo: memFree=1722812/2059040 swapFree=4140200/4192956
[pid=28395] ppid=28393 vsize=49456 CPUtime=3.09
/proc/28395/stat : 28395 (pbct) R 28393 28395 27737 0 -1 4202496 12678 0 0 0 304 5 0 0 25 0 1 0 27404570 50642944 10751 1992294400 134512640 136485738 4292222608 18446744073709551615 135180273 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28395/statm: 12364 10751 160 482 0 11880 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 49456

[startup+6.30188 s]
/proc/loadavg: 0.99 0.98 1.00 2/107 28396
/proc/meminfo: memFree=1719712/2059040 swapFree=4140200/4192956
[pid=28395] ppid=28393 vsize=49456 CPUtime=6.29
/proc/28395/stat : 28395 (pbct) R 28393 28395 27737 0 -1 4202496 12678 0 0 0 624 5 0 0 25 0 1 0 27404570 50642944 10751 1992294400 134512640 136485738 4292222608 18446744073709551615 135180333 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28395/statm: 12364 10751 160 482 0 11880 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 49456

[startup+12.7014 s]
/proc/loadavg: 0.99 0.98 1.00 2/107 28396
/proc/meminfo: memFree=1719712/2059040 swapFree=4140200/4192956
[pid=28395] ppid=28393 vsize=49456 CPUtime=12.68
/proc/28395/stat : 28395 (pbct) R 28393 28395 27737 0 -1 4202496 12678 0 0 0 1263 5 0 0 25 0 1 0 27404570 50642944 10751 1992294400 134512640 136485738 4292222608 18446744073709551615 135180333 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28395/statm: 12364 10751 160 482 0 11880 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 49456

[startup+25.5004 s]
/proc/loadavg: 0.99 0.98 1.00 2/107 28398
/proc/meminfo: memFree=1719712/2059040 swapFree=4140200/4192956
[pid=28395] ppid=28393 vsize=49456 CPUtime=25.48
/proc/28395/stat : 28395 (pbct) R 28393 28395 27737 0 -1 4202496 12678 0 0 0 2543 5 0 0 25 0 1 0 27404570 50642944 10751 1992294400 134512640 136485738 4292222608 18446744073709551615 135180296 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28395/statm: 12364 10751 160 482 0 11880 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 49456

[startup+51.1005 s]
/proc/loadavg: 0.99 0.98 1.00 2/107 28398
/proc/meminfo: memFree=408908/2059040 swapFree=4140200/4192956
[pid=28395] ppid=28393 vsize=1414980 CPUtime=51.07
/proc/28395/stat : 28395 (pbct) R 28393 28395 27737 0 -1 4202496 374870 0 0 0 4945 162 0 0 25 0 1 0 27404570 1448939520 348218 1992294400 134512640 136485738 4292222608 18446744073709551615 135850714 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28395/statm: 353745 348219 197 482 0 353261 0
Current children cumulated CPU time (s) 51.07
Current children cumulated vsize (KiB) 1414980



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+55.1002 s]
/proc/loadavg: 0.99 0.98 1.00 2/107 28398
/proc/meminfo: memFree=8032/2059040 swapFree=4140200/4192956
[pid=28395] ppid=28393 vsize=1850180 CPUtime=54.89
/proc/28395/stat : 28395 (pbct) R 28393 28395 27737 0 -1 4202496 490227 0 0 0 5267 222 0 0 25 0 1 0 27404570 1894584320 460502 1992294400 134512640 136485738 4292222608 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 0 0 0 19
/proc/28395/statm: 462578 460507 199 482 0 462094 0
Current children cumulated CPU time (s) 54.89
Current children cumulated vsize (KiB) 1850180

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

Sending SIGKILL to process tree (bottom up)

Sending SIGKILL to -28395

############
# WARNING:
# current cumulated CPU time (0 s) is less than in the last sample (54.96 s)
# The time of a child was probably not reported to its father.
# (see the two samples below)
# Adding the difference (54.96 s) to the 'lost time'.

[startup+57.2011 s]
/proc/loadavg: 0.99 0.98 1.00 1/108 28399
/proc/meminfo: memFree=10636/2059040 swapFree=4140200/4192956
[pid=28395] ppid=28393 vsize=0 CPUtime=54.96
/proc/28395/stat : 28395 (pbct) R 28393 28395 27737 0 -1 4195332 490265 0 0 0 5267 229 0 0 18 0 1 0 27404570 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 0 0 0 19
/proc/28395/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 54.96
Current children cumulated vsize (KiB) 0

[startup+57.3011 s]
/proc/loadavg: 0.99 0.98 1.00 2/107 28399
/proc/meminfo: memFree=1845224/2059040 swapFree=4140200/4192956
[pid=28395] ppid=-1 vsize=0 CPUtime=0
/proc/28395/stat : -- couldn't open stat file --/proc/28395/statm: Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 0
#
############


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

[startup+56.0001 s]
/proc/loadavg: 0.99 0.98 1.00 2/107 28398
/proc/meminfo: memFree=8032/2059040 swapFree=4140200/4192956
[pid=28395] ppid=28393 vsize=1850444 CPUtime=54.89
/proc/28395/stat : 28395 (pbct) S 28393 28395 27737 0 -1 4194304 490265 0 0 0 5267 222 0 0 25 0 1 0 27404570 1894854656 460540 1992294400 134512640 136485738 4292222608 18446744073709551615 135319262 0 16384 4096 16387 18446604437545080640 0 0 17 0 0 0 19
/proc/28395/statm: 462611 460540 199 482 0 462127 0
Current children cumulated CPU time (s) 54.89
Current children cumulated vsize (KiB) 1850444

[startup+56.8001 s]
/proc/loadavg: 0.99 0.98 1.00 1/108 28399
/proc/meminfo: memFree=10636/2059040 swapFree=4140200/4192956
[pid=28395] ppid=28393 vsize=1850444 CPUtime=54.89
/proc/28395/stat : 28395 (pbct) S 28393 28395 27737 0 -1 4194304 490265 0 0 0 5267 222 0 0 25 0 1 0 27404570 1894854656 460540 1992294400 134512640 136485738 4292222608 18446744073709551615 135319262 0 16384 4096 16387 18446604437545080640 0 0 17 0 0 0 19
/proc/28395/statm: 462611 460540 199 482 0 462127 0
Current children cumulated CPU time (s) 54.89
Current children cumulated vsize (KiB) 1850444

[startup+57.2011 s]
/proc/loadavg: 0.99 0.98 1.00 1/108 28399
/proc/meminfo: memFree=10636/2059040 swapFree=4140200/4192956
[pid=28395] ppid=28393 vsize=0 CPUtime=54.96
/proc/28395/stat : 28395 (pbct) R 28393 28395 27737 0 -1 4195332 490265 0 0 0 5267 229 0 0 18 0 1 0 27404570 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 0 0 0 19
/proc/28395/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 54.96
Current children cumulated vsize (KiB) 0

[startup+57.3011 s]
/proc/loadavg: 0.99 0.98 1.00 2/107 28399
/proc/meminfo: memFree=1845224/2059040 swapFree=4140200/4192956
[pid=28395] ppid=-1 vsize=0 CPUtime=0
/proc/28395/stat : -- couldn't open stat file --/proc/28395/statm: Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 0

Child ended because it received signal 9 (SIGKILL)

# WARNING:
# The CPU time of some children was not reported to their father
# (probably because of a missing or aborted wait()).
# This 'lost CPU time' is added to the watched process CPU time.
#  lost CPU time (s): 54.96
#  lost CPU user time (s): 52.67
#  lost CPU system time (s): 2.29

Real time (s): 57.3043
CPU time (s): 110.042
CPU user time (s): 105.35
CPU system time (s): 4.69163
CPU usage (%): 192.03
Max. virtual memory (cumulated for all children) (KiB): 1850444

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 52.68
system time used= 2.40163
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 490265
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= 4
involuntary context switches= 788

runsolver used 0.109983 second user time and 0.292955 second system time

The end

Launcher Data 

Begin job on node003 at 2010-06-14 14:20:06
IDJOB=2668681
IDBENCH=2281
IDSOLVER=1170
FILE ID=node003/2668681-1276518006
PBS_JOBID= 11173423
Free space on /tmp= 62568 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/plato.asu.edu/pub/fctp/normalized-mps-v2-20-10-n3702.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668681-1276518006/watcher-2668681-1276518006 -o /tmp/evaluation-result-2668681-1276518006/solver-2668681-1276518006 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668681-1276518006.opb

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

MD5SUM BENCH= d696f4100af4494c851a4f1a4044ecb8
RANDOM SEED=1187095157

node003.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		: 3000.251
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	: 6000.50
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		: 3000.251
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	: 5599.45
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1763276 kB
Buffers:         99564 kB
Cached:         115848 kB
SwapCached:       5744 kB
Active:         106260 kB
Inactive:       121776 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1763276 kB
SwapTotal:     4192956 kB
SwapFree:      4140200 kB
Dirty:           10648 kB
Writeback:           0 kB
AnonPages:       11064 kB
Mapped:          13016 kB
Slab:            45972 kB
PageTables:       4008 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181968 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= 62564 MiB
End job on node003 at 2010-06-14 14:21:04