Trace number 2682493

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 41.4838 20.8023

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111212476.opb
MD5SUM08d0b9097a8249582d167bf6c1cdd903
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 benchmark0.179972
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 1139
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
20.69/20.78	c 18.8721 7.91406 1278 111568
20.69/20.80	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-2682493-1277475654/watcher-2682493-1277475654 -o /tmp/evaluation-result-2682493-1277475654/solver-2682493-1277475654 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682493-1277475654.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: 0.34 0.08 0.02 3/106 23353
/proc/meminfo: memFree=1736924/2059040 swapFree=4139944/4192956
[pid=23353] ppid=23351 vsize=3444 CPUtime=0
/proc/23353/stat : 23353 (pbct) R 23351 23353 23274 0 -1 4202496 558 0 0 0 0 0 0 0 20 0 1 0 123168884 3526656 478 1992294400 134512640 136421960 4294437168 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23353/statm: 861 479 193 467 0 392 0

[startup+0.0498421 s]
/proc/loadavg: 0.34 0.08 0.02 3/106 23353
/proc/meminfo: memFree=1736924/2059040 swapFree=4139944/4192956
[pid=23353] ppid=23351 vsize=7068 CPUtime=0.04
/proc/23353/stat : 23353 (pbct) R 23351 23353 23274 0 -1 4202496 1447 0 0 0 4 0 0 0 20 0 1 0 123168884 7237632 1367 1992294400 134512640 136421960 4294437168 18446744073709551615 134930977 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23353/statm: 1767 1367 203 467 0 1298 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 7068

[startup+0.100851 s]
/proc/loadavg: 0.34 0.08 0.02 3/106 23353
/proc/meminfo: memFree=1736924/2059040 swapFree=4139944/4192956
[pid=23353] ppid=23351 vsize=7332 CPUtime=0.09
/proc/23353/stat : 23353 (pbct) R 23351 23353 23274 0 -1 4202496 1542 0 0 0 8 1 0 0 20 0 1 0 123168884 7507968 1462 1992294400 134512640 136421960 4294437168 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23353/statm: 1833 1462 213 467 0 1364 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7332

[startup+0.300888 s]
/proc/loadavg: 0.34 0.08 0.02 3/106 23353
/proc/meminfo: memFree=1736924/2059040 swapFree=4139944/4192956
[pid=23353] ppid=23351 vsize=7588 CPUtime=0.29
/proc/23353/stat : 23353 (pbct) R 23351 23353 23274 0 -1 4202496 1594 0 0 0 27 2 0 0 20 0 1 0 123168884 7770112 1514 1992294400 134512640 136421960 4294437168 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23353/statm: 1897 1514 213 467 0 1428 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7588

[startup+0.700962 s]
/proc/loadavg: 0.34 0.08 0.02 3/106 23353
/proc/meminfo: memFree=1736924/2059040 swapFree=4139944/4192956
[pid=23353] ppid=23351 vsize=7716 CPUtime=0.69
/proc/23353/stat : 23353 (pbct) R 23351 23353 23274 0 -1 4202496 1618 0 0 0 63 6 0 0 20 0 1 0 123168884 7901184 1538 1992294400 134512640 136421960 4294437168 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23353/statm: 1929 1538 213 467 0 1460 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 7716

[startup+1.50111 s]
/proc/loadavg: 0.34 0.08 0.02 2/107 23354
/proc/meminfo: memFree=1731460/2059040 swapFree=4139944/4192956
[pid=23353] ppid=23351 vsize=7716 CPUtime=1.49
/proc/23353/stat : 23353 (pbct) R 23351 23353 23274 0 -1 4202496 1639 0 0 0 136 13 0 0 22 0 1 0 123168884 7901184 1559 1992294400 134512640 136421960 4294437168 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23353/statm: 1929 1559 213 467 0 1460 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7716

[startup+3.1014 s]
/proc/loadavg: 0.39 0.09 0.03 2/107 23354
/proc/meminfo: memFree=1731088/2059040 swapFree=4139944/4192956
[pid=23353] ppid=23351 vsize=7844 CPUtime=3.09
/proc/23353/stat : 23353 (pbct) R 23351 23353 23274 0 -1 4202496 1676 0 0 0 280 29 0 0 25 0 1 0 123168884 8032256 1596 1992294400 134512640 136421960 4294437168 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23353/statm: 1961 1596 213 467 0 1492 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 7844

[startup+6.30099 s]
/proc/loadavg: 0.39 0.09 0.03 2/107 23354
/proc/meminfo: memFree=1731088/2059040 swapFree=4139944/4192956
[pid=23353] ppid=23351 vsize=7972 CPUtime=6.29
/proc/23353/stat : 23353 (pbct) R 23351 23353 23274 0 -1 4202496 1698 0 0 0 570 59 0 0 25 0 1 0 123168884 8163328 1618 1992294400 134512640 136421960 4294437168 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23353/statm: 1993 1618 213 467 0 1524 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 7972

[startup+12.7012 s]
/proc/loadavg: 0.49 0.12 0.04 2/107 23354
/proc/meminfo: memFree=1730716/2059040 swapFree=4139944/4192956
[pid=23353] ppid=23351 vsize=8100 CPUtime=12.69
/proc/23353/stat : 23353 (pbct) R 23351 23353 23274 0 -1 4202496 1737 0 0 0 1150 119 0 0 25 0 1 0 123168884 8294400 1657 1992294400 134512640 136421960 4294437168 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23353/statm: 2025 1657 213 467 0 1556 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 8100

############
# WARNING:
# current cumulated CPU time (0 s) is less than in the last sample (20.69 s)
# The time of a child was probably not reported to its father.
# (see the two samples below)
# Adding the difference (20.69 s) to the 'lost time'.

[startup+20.7007 s]
/proc/loadavg: 0.53 0.14 0.04 2/107 23354
/proc/meminfo: memFree=1730716/2059040 swapFree=4139944/4192956
[pid=23353] ppid=23351 vsize=8100 CPUtime=20.69
/proc/23353/stat : 23353 (pbct) R 23351 23353 23274 0 -1 4202496 1737 0 0 0 1879 190 0 0 25 0 1 0 123168884 8294400 1657 1992294400 134512640 136421960 4294437168 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23353/statm: 2025 1657 213 467 0 1556 0
Current children cumulated CPU time (s) 20.69
Current children cumulated vsize (KiB) 8100

[startup+20.8007 s]
/proc/loadavg: 0.53 0.14 0.04 2/107 23354
/proc/meminfo: memFree=1730840/2059040 swapFree=4139944/4192956
[pid=23353] ppid=-1 vsize=0 CPUtime=0
/proc/23353/stat : -- couldn't open stat file --/proc/23353/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: 0.49 0.12 0.04 2/107 23354
/proc/meminfo: memFree=1730716/2059040 swapFree=4139944/4192956
[pid=23353] ppid=23351 vsize=8100 CPUtime=15.88
/proc/23353/stat : 23353 (pbct) R 23351 23353 23274 0 -1 4202496 1737 0 0 0 1441 147 0 0 25 0 1 0 123168884 8294400 1657 1992294400 134512640 136421960 4294437168 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23353/statm: 2025 1657 213 467 0 1556 0
Current children cumulated CPU time (s) 15.88
Current children cumulated vsize (KiB) 8100

[startup+19.1004 s]
/proc/loadavg: 0.53 0.14 0.04 2/107 23354
/proc/meminfo: memFree=1730716/2059040 swapFree=4139944/4192956
[pid=23353] ppid=23351 vsize=8100 CPUtime=19.09
/proc/23353/stat : 23353 (pbct) R 23351 23353 23274 0 -1 4202496 1737 0 0 0 1733 176 0 0 25 0 1 0 123168884 8294400 1657 1992294400 134512640 136421960 4294437168 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23353/statm: 2025 1657 213 467 0 1556 0
Current children cumulated CPU time (s) 19.09
Current children cumulated vsize (KiB) 8100

[startup+19.9005 s]
/proc/loadavg: 0.53 0.14 0.04 2/107 23354
/proc/meminfo: memFree=1730716/2059040 swapFree=4139944/4192956
[pid=23353] ppid=23351 vsize=8100 CPUtime=19.89
/proc/23353/stat : 23353 (pbct) R 23351 23353 23274 0 -1 4202496 1737 0 0 0 1807 182 0 0 25 0 1 0 123168884 8294400 1657 1992294400 134512640 136421960 4294437168 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23353/statm: 2025 1657 213 467 0 1556 0
Current children cumulated CPU time (s) 19.89
Current children cumulated vsize (KiB) 8100

[startup+20.3006 s]
/proc/loadavg: 0.53 0.14 0.04 2/107 23354
/proc/meminfo: memFree=1730716/2059040 swapFree=4139944/4192956
[pid=23353] ppid=23351 vsize=8100 CPUtime=20.29
/proc/23353/stat : 23353 (pbct) R 23351 23353 23274 0 -1 4202496 1737 0 0 0 1843 186 0 0 25 0 1 0 123168884 8294400 1657 1992294400 134512640 136421960 4294437168 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23353/statm: 2025 1657 213 467 0 1556 0
Current children cumulated CPU time (s) 20.29
Current children cumulated vsize (KiB) 8100

[startup+20.7007 s]
/proc/loadavg: 0.53 0.14 0.04 2/107 23354
/proc/meminfo: memFree=1730716/2059040 swapFree=4139944/4192956
[pid=23353] ppid=23351 vsize=8100 CPUtime=20.69
/proc/23353/stat : 23353 (pbct) R 23351 23353 23274 0 -1 4202496 1737 0 0 0 1879 190 0 0 25 0 1 0 123168884 8294400 1657 1992294400 134512640 136421960 4294437168 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23353/statm: 2025 1657 213 467 0 1556 0
Current children cumulated CPU time (s) 20.69
Current children cumulated vsize (KiB) 8100

[startup+20.8007 s]
/proc/loadavg: 0.53 0.14 0.04 2/107 23354
/proc/meminfo: memFree=1730840/2059040 swapFree=4139944/4192956
[pid=23353] ppid=-1 vsize=0 CPUtime=0
/proc/23353/stat : -- couldn't open stat file --/proc/23353/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): 20.69
#  lost CPU user time (s): 18.79
#  lost CPU system time (s): 1.9

Real time (s): 20.8023
CPU time (s): 41.4838
CPU user time (s): 37.6741
CPU system time (s): 3.80971
CPU usage (%): 199.419
Max. virtual memory (cumulated for all children) (KiB): 8100

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 18.8841
system time used= 1.90971
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1763
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= 29

runsolver used 0.032994 second user time and 0.113982 second system time

The end

Launcher Data 

Begin job on node007 at 2010-06-25 16:20:54
IDJOB=2682493
IDBENCH=1231
IDSOLVER=1192
FILE ID=node007/2682493-1277475654
PBS_JOBID= 11190528
Free space on /tmp= 62328 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111212476.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682493-1277475654/watcher-2682493-1277475654 -o /tmp/evaluation-result-2682493-1277475654/solver-2682493-1277475654 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682493-1277475654.opb

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

MD5SUM BENCH= 08d0b9097a8249582d167bf6c1cdd903
RANDOM SEED=900415008

node007.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		: 3000.264
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	: 6000.52
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		: 3000.264
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	: 5599.44
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1737328 kB
Buffers:         37432 kB
Cached:         196268 kB
SwapCached:       5936 kB
Active:          78684 kB
Inactive:       168424 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1737328 kB
SwapTotal:     4192956 kB
SwapFree:      4139944 kB
Dirty:            2112 kB
Writeback:           0 kB
AnonPages:       12072 kB
Mapped:          11948 kB
Slab:            52388 kB
PageTables:       4208 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182504 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= 62324 MiB
End job on node007 at 2010-06-25 16:21:15