Trace number 2682521

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 NameAnswerCPU timeWall clock time
PB/CT 0.1 fixedUNSAT 43.6807 21.9066

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111218757.opb
MD5SUMd6496b44145c310b75c0b7261c5aa1e2
Bench CategoryDEC-SMALLINT (no optimisation, small 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 benchmark0.12798
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables169
Total number of constraints101
Number of constraints which are clauses30
Number of constraints which are cardinality constraints (but not clauses)70
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint2
Maximum length of a constraint169
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 38
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 1266
Number of bits of the biggest sum of numbers11
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
0.00/0.00	c constraints 71/0 clauses 30/0 units 0
0.00/0.00	c vars 169
21.78/21.89	c 19.8 7.89062 1233 118617
0.00/21.90	s UNSATISFIABLE

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-2682521-1277475668/watcher-2682521-1277475668 -o /tmp/evaluation-result-2682521-1277475668/solver-2682521-1277475668 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682521-1277475668.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: 0.39 0.09 0.03 3/106 28992
/proc/meminfo: memFree=1820428/2059040 swapFree=4140116/4192956
[pid=28992] ppid=28990 vsize=3444 CPUtime=0
/proc/28992/stat : 28992 (pbct) R 28990 28992 28857 0 -1 4202496 555 0 0 0 0 0 0 0 25 0 1 0 88861938 3526656 475 1992294400 134512640 136421960 4293688240 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28992/statm: 861 477 193 467 0 392 0

[startup+0.097953 s]
/proc/loadavg: 0.39 0.09 0.03 3/106 28992
/proc/meminfo: memFree=1820428/2059040 swapFree=4140116/4192956
[pid=28992] ppid=28990 vsize=7308 CPUtime=0.09
/proc/28992/stat : 28992 (pbct) R 28990 28992 28857 0 -1 4202496 1542 0 0 0 8 1 0 0 25 0 1 0 88861938 7483392 1462 1992294400 134512640 136421960 4293688240 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28992/statm: 1827 1462 213 467 0 1358 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7308

[startup+0.100952 s]
/proc/loadavg: 0.39 0.09 0.03 3/106 28992
/proc/meminfo: memFree=1820428/2059040 swapFree=4140116/4192956
[pid=28992] ppid=28990 vsize=7308 CPUtime=0.09
/proc/28992/stat : 28992 (pbct) R 28990 28992 28857 0 -1 4202496 1543 0 0 0 8 1 0 0 25 0 1 0 88861938 7483392 1463 1992294400 134512640 136421960 4293688240 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28992/statm: 1827 1463 213 467 0 1358 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7308

[startup+0.300975 s]
/proc/loadavg: 0.39 0.09 0.03 3/106 28992
/proc/meminfo: memFree=1820428/2059040 swapFree=4140116/4192956
[pid=28992] ppid=28990 vsize=7564 CPUtime=0.29
/proc/28992/stat : 28992 (pbct) R 28990 28992 28857 0 -1 4202496 1587 0 0 0 26 3 0 0 25 0 1 0 88861938 7745536 1507 1992294400 134512640 136421960 4293688240 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28992/statm: 1891 1507 213 467 0 1422 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7564

[startup+0.701022 s]
/proc/loadavg: 0.39 0.09 0.03 3/106 28992
/proc/meminfo: memFree=1820428/2059040 swapFree=4140116/4192956
[pid=28992] ppid=28990 vsize=7564 CPUtime=0.69
/proc/28992/stat : 28992 (pbct) R 28990 28992 28857 0 -1 4202496 1607 0 0 0 62 7 0 0 25 0 1 0 88861938 7745536 1527 1992294400 134512640 136421960 4293688240 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28992/statm: 1891 1527 213 467 0 1422 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 7564

[startup+1.50111 s]
/proc/loadavg: 0.52 0.12 0.04 2/107 28993
/proc/meminfo: memFree=1814964/2059040 swapFree=4140116/4192956
[pid=28992] ppid=28990 vsize=7692 CPUtime=1.49
/proc/28992/stat : 28992 (pbct) R 28990 28992 28857 0 -1 4202496 1641 0 0 0 133 16 0 0 25 0 1 0 88861938 7876608 1561 1992294400 134512640 136421960 4293688240 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28992/statm: 1923 1561 213 467 0 1454 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7692

[startup+3.1013 s]
/proc/loadavg: 0.52 0.12 0.04 2/107 28993
/proc/meminfo: memFree=1814592/2059040 swapFree=4140116/4192956
[pid=28992] ppid=28990 vsize=7820 CPUtime=3.09
/proc/28992/stat : 28992 (pbct) R 28990 28992 28857 0 -1 4202496 1650 0 0 0 277 32 0 0 25 0 1 0 88861938 8007680 1570 1992294400 134512640 136421960 4293688240 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28992/statm: 1955 1570 213 467 0 1486 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 7820

[startup+6.30068 s]
/proc/loadavg: 0.52 0.12 0.04 2/107 28993
/proc/meminfo: memFree=1814468/2059040 swapFree=4140116/4192956
[pid=28992] ppid=28990 vsize=7948 CPUtime=6.29
/proc/28992/stat : 28992 (pbct) R 28990 28992 28857 0 -1 4202496 1693 0 0 0 565 64 0 0 25 0 1 0 88861938 8138752 1613 1992294400 134512640 136421960 4293688240 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28992/statm: 1987 1613 213 467 0 1518 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 7948

[startup+12.7014 s]
/proc/loadavg: 0.59 0.15 0.05 2/107 28993
/proc/meminfo: memFree=1814220/2059040 swapFree=4140116/4192956
[pid=28992] ppid=28990 vsize=8076 CPUtime=12.69
/proc/28992/stat : 28992 (pbct) R 28990 28992 28857 0 -1 4202496 1739 0 0 0 1147 122 0 0 25 0 1 0 88861938 8269824 1659 1992294400 134512640 136421960 4293688240 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28992/statm: 2019 1659 213 467 0 1550 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 8076

############
# WARNING:
# current cumulated CPU time (0 s) is less than in the last sample (21.78 s)
# The time of a child was probably not reported to its father.
# (see the two samples below)
# Adding the difference (21.78 s) to the 'lost time'.

[startup+21.8015 s]
/proc/loadavg: 0.65 0.18 0.06 2/107 28993
/proc/meminfo: memFree=1814220/2059040 swapFree=4140116/4192956
[pid=28992] ppid=28990 vsize=8076 CPUtime=21.78
/proc/28992/stat : 28992 (pbct) R 28990 28992 28857 0 -1 4202496 1739 0 0 0 1971 207 0 0 25 0 1 0 88861938 8269824 1659 1992294400 134512640 136421960 4293688240 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28992/statm: 2019 1659 213 467 0 1550 0
Current children cumulated CPU time (s) 21.78
Current children cumulated vsize (KiB) 8076

[startup+21.9015 s]
/proc/loadavg: 0.65 0.18 0.06 2/107 28993
/proc/meminfo: memFree=1814220/2059040 swapFree=4140116/4192956
[pid=28992] ppid=-1 vsize=0 CPUtime=0
/proc/28992/stat : -- couldn't open stat file --/proc/28992/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+15.9008 s]
/proc/loadavg: 0.59 0.15 0.05 2/107 28993
/proc/meminfo: memFree=1814220/2059040 swapFree=4140116/4192956
[pid=28992] ppid=28990 vsize=8076 CPUtime=15.89
/proc/28992/stat : 28992 (pbct) R 28990 28992 28857 0 -1 4202496 1739 0 0 0 1436 153 0 0 25 0 1 0 88861938 8269824 1659 1992294400 134512640 136421960 4293688240 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28992/statm: 2019 1659 213 467 0 1550 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 8076

[startup+19.1012 s]
/proc/loadavg: 0.62 0.17 0.05 2/107 28993
/proc/meminfo: memFree=1814220/2059040 swapFree=4140116/4192956
[pid=28992] ppid=28990 vsize=8076 CPUtime=19.09
/proc/28992/stat : 28992 (pbct) R 28990 28992 28857 0 -1 4202496 1739 0 0 0 1727 182 0 0 25 0 1 0 88861938 8269824 1659 1992294400 134512640 136421960 4293688240 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28992/statm: 2019 1659 213 467 0 1550 0
Current children cumulated CPU time (s) 19.09
Current children cumulated vsize (KiB) 8076

[startup+20.7014 s]
/proc/loadavg: 0.62 0.17 0.05 2/107 28993
/proc/meminfo: memFree=1814220/2059040 swapFree=4140116/4192956
[pid=28992] ppid=28990 vsize=8076 CPUtime=20.68
/proc/28992/stat : 28992 (pbct) R 28990 28992 28857 0 -1 4202496 1739 0 0 0 1871 197 0 0 25 0 1 0 88861938 8269824 1659 1992294400 134512640 136421960 4293688240 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28992/statm: 2019 1659 213 467 0 1550 0
Current children cumulated CPU time (s) 20.68
Current children cumulated vsize (KiB) 8076

[startup+21.5015 s]
/proc/loadavg: 0.65 0.18 0.06 2/107 28993
/proc/meminfo: memFree=1814220/2059040 swapFree=4140116/4192956
[pid=28992] ppid=28990 vsize=8076 CPUtime=21.49
/proc/28992/stat : 28992 (pbct) R 28990 28992 28857 0 -1 4202496 1739 0 0 0 1945 204 0 0 25 0 1 0 88861938 8269824 1659 1992294400 134512640 136421960 4293688240 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28992/statm: 2019 1659 213 467 0 1550 0
Current children cumulated CPU time (s) 21.49
Current children cumulated vsize (KiB) 8076

[startup+21.9015 s]
/proc/loadavg: 0.65 0.18 0.06 2/107 28993
/proc/meminfo: memFree=1814220/2059040 swapFree=4140116/4192956
[pid=28992] ppid=-1 vsize=0 CPUtime=0
/proc/28992/stat : -- couldn't open stat file --/proc/28992/statm: Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 0

Child status: 0

# 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): 21.78
#  lost CPU user time (s): 19.71
#  lost CPU system time (s): 2.07

Real time (s): 21.9066
CPU time (s): 43.6807
CPU user time (s): 39.523
CPU system time (s): 4.15768
CPU usage (%): 199.395
Max. virtual memory (cumulated for all children) (KiB): 8076

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 19.813
system time used= 2.08768
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1765
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= 1
involuntary context switches= 274

runsolver used 0.041993 second user time and 0.111982 second system time

The end

Launcher Data 

Begin job on node033 at 2010-06-25 16:21:08
IDJOB=2682521
IDBENCH=1259
IDSOLVER=1192
FILE ID=node033/2682521-1277475668
PBS_JOBID= 11190511
Free space on /tmp= 62304 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111218757.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682521-1277475668/watcher-2682521-1277475668 -o /tmp/evaluation-result-2682521-1277475668/solver-2682521-1277475668 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682521-1277475668.opb

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

MD5SUM BENCH= d6496b44145c310b75c0b7261c5aa1e2
RANDOM SEED=1847070724

node033.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		: 3000.242
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	: 6000.48
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		: 3000.242
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:       1820964 kB
Buffers:         37304 kB
Cached:         102592 kB
SwapCached:       5352 kB
Active:          63440 kB
Inactive:        89368 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1820964 kB
SwapTotal:     4192956 kB
SwapFree:      4140116 kB
Dirty:            2188 kB
Writeback:           0 kB
AnonPages:       11512 kB
Mapped:          12024 kB
Slab:            63352 kB
PageTables:       4188 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181676 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= 62304 MiB
End job on node033 at 2010-06-25 16:21:30