Trace number 2682529

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 13.178 13.1821

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111213670.opb
MD5SUMb39cb5acbcabe453d1995603b90c4d93
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 benchmark0.033994
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 1239
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
13.09/13.16	c 11.8952 7.77734 2289 71725
13.09/13.18	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-2682529-1277475670/watcher-2682529-1277475670 -o /tmp/evaluation-result-2682529-1277475670/solver-2682529-1277475670 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682529-1277475670.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: 0.56 0.14 0.04 3/106 20870
/proc/meminfo: memFree=1805784/2059040 swapFree=4136184/4192956
[pid=20870] ppid=20868 vsize=3444 CPUtime=0
/proc/20870/stat : 20870 (pbct) R 20868 20870 20789 0 -1 4202496 568 0 0 0 0 0 0 0 25 0 1 0 121218876 3526656 488 1992294400 134512640 136421960 4293934080 18446744073709551615 134632264 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/20870/statm: 861 488 193 467 0 392 0

[startup+0.100638 s]
/proc/loadavg: 0.56 0.14 0.04 3/106 20870
/proc/meminfo: memFree=1805784/2059040 swapFree=4136184/4192956
[pid=20870] ppid=20868 vsize=7328 CPUtime=0.09
/proc/20870/stat : 20870 (pbct) R 20868 20870 20789 0 -1 4202496 1542 0 0 0 9 0 0 0 25 0 1 0 121218876 7503872 1462 1992294400 134512640 136421960 4293934080 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/20870/statm: 1832 1462 213 467 0 1363 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7328

[startup+0.200656 s]
/proc/loadavg: 0.56 0.14 0.04 3/106 20870
/proc/meminfo: memFree=1805784/2059040 swapFree=4136184/4192956
[pid=20870] ppid=20868 vsize=7456 CPUtime=0.19
/proc/20870/stat : 20870 (pbct) R 20868 20870 20789 0 -1 4202496 1566 0 0 0 18 1 0 0 25 0 1 0 121218876 7634944 1486 1992294400 134512640 136421960 4293934080 18446744073709551615 134861890 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/20870/statm: 1864 1486 213 467 0 1395 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 7456

[startup+0.300674 s]
/proc/loadavg: 0.56 0.14 0.04 3/106 20870
/proc/meminfo: memFree=1805784/2059040 swapFree=4136184/4192956
[pid=20870] ppid=20868 vsize=7456 CPUtime=0.29
/proc/20870/stat : 20870 (pbct) R 20868 20870 20789 0 -1 4202496 1584 0 0 0 27 2 0 0 25 0 1 0 121218876 7634944 1504 1992294400 134512640 136421960 4293934080 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/20870/statm: 1864 1504 213 467 0 1395 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7456

[startup+0.700746 s]
/proc/loadavg: 0.56 0.14 0.04 3/106 20870
/proc/meminfo: memFree=1805784/2059040 swapFree=4136184/4192956
[pid=20870] ppid=20868 vsize=7716 CPUtime=0.69
/proc/20870/stat : 20870 (pbct) R 20868 20870 20789 0 -1 4202496 1617 0 0 0 63 6 0 0 25 0 1 0 121218876 7901184 1537 1992294400 134512640 136421960 4293934080 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/20870/statm: 1929 1537 213 467 0 1460 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 7716

[startup+1.50089 s]
/proc/loadavg: 0.56 0.14 0.04 2/107 20871
/proc/meminfo: memFree=1800320/2059040 swapFree=4136184/4192956
[pid=20870] ppid=20868 vsize=7716 CPUtime=1.49
/proc/20870/stat : 20870 (pbct) R 20868 20870 20789 0 -1 4202496 1632 0 0 0 136 13 0 0 25 0 1 0 121218876 7901184 1552 1992294400 134512640 136421960 4293934080 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/20870/statm: 1929 1552 213 467 0 1460 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7716

[startup+3.10118 s]
/proc/loadavg: 0.56 0.14 0.04 3/107 20871
/proc/meminfo: memFree=1799948/2059040 swapFree=4136184/4192956
[pid=20870] ppid=20868 vsize=7844 CPUtime=3.09
/proc/20870/stat : 20870 (pbct) R 20868 20870 20789 0 -1 4202496 1665 0 0 0 281 28 0 0 25 0 1 0 121218876 8032256 1585 1992294400 134512640 136421960 4293934080 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/20870/statm: 1961 1585 213 467 0 1492 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 7844

[startup+6.30077 s]
/proc/loadavg: 0.59 0.15 0.05 2/107 20871
/proc/meminfo: memFree=1799824/2059040 swapFree=4136184/4192956
[pid=20870] ppid=20868 vsize=7844 CPUtime=6.29
/proc/20870/stat : 20870 (pbct) R 20868 20870 20789 0 -1 4202496 1678 0 0 0 569 60 0 0 25 0 1 0 121218876 8032256 1598 1992294400 134512640 136421960 4293934080 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/20870/statm: 1961 1598 213 467 0 1492 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 7844

[startup+12.7009 s]
/proc/loadavg: 0.63 0.17 0.05 2/107 20871
/proc/meminfo: memFree=1799576/2059040 swapFree=4136184/4192956
[pid=20870] ppid=20868 vsize=7960 CPUtime=12.69
/proc/20870/stat : 20870 (pbct) R 20868 20870 20789 0 -1 4202496 1699 0 0 0 1146 123 0 0 25 0 1 0 121218876 8151040 1619 1992294400 134512640 136421960 4293934080 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/20870/statm: 1990 1619 213 467 0 1521 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 7960

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

[startup+12.8009 s]
/proc/loadavg: 0.63 0.17 0.05 2/107 20871
/proc/meminfo: memFree=1799576/2059040 swapFree=4136184/4192956
[pid=20870] ppid=20868 vsize=7960 CPUtime=12.79
/proc/20870/stat : 20870 (pbct) R 20868 20870 20789 0 -1 4202496 1699 0 0 0 1155 124 0 0 25 0 1 0 121218876 8151040 1619 1992294400 134512640 136421960 4293934080 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/20870/statm: 1990 1619 213 467 0 1521 0
Current children cumulated CPU time (s) 12.79
Current children cumulated vsize (KiB) 7960

[startup+13.001 s]
/proc/loadavg: 0.63 0.17 0.05 2/107 20871
/proc/meminfo: memFree=1799576/2059040 swapFree=4136184/4192956
[pid=20870] ppid=20868 vsize=7960 CPUtime=12.99
/proc/20870/stat : 20870 (pbct) R 20868 20870 20789 0 -1 4202496 1699 0 0 0 1174 125 0 0 25 0 1 0 121218876 8151040 1619 1992294400 134512640 136421960 4293934080 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/20870/statm: 1990 1619 213 467 0 1521 0
Current children cumulated CPU time (s) 12.99
Current children cumulated vsize (KiB) 7960

[startup+13.101 s]
/proc/loadavg: 0.63 0.17 0.05 2/107 20871
/proc/meminfo: memFree=1799576/2059040 swapFree=4136184/4192956
[pid=20870] ppid=20868 vsize=7960 CPUtime=13.09
/proc/20870/stat : 20870 (pbct) R 20868 20870 20789 0 -1 4202496 1699 0 0 0 1183 126 0 0 25 0 1 0 121218876 8151040 1619 1992294400 134512640 136421960 4293934080 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/20870/statm: 1990 1619 213 467 0 1521 0
Current children cumulated CPU time (s) 13.09
Current children cumulated vsize (KiB) 7960

Child status: 0
Real time (s): 13.1821
CPU time (s): 13.178
CPU user time (s): 11.9082
CPU system time (s): 1.26981
CPU usage (%): 99.9685
Max. virtual memory (cumulated for all children) (KiB): 7960

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 11.9082
system time used= 1.26981
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1725
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= 47

runsolver used 0.034994 second user time and 0.072988 second system time

The end

Launcher Data 

Begin job on node027 at 2010-06-25 16:21:10
IDJOB=2682529
IDBENCH=1267
IDSOLVER=1192
FILE ID=node027/2682529-1277475670
PBS_JOBID= 11190515
Free space on /tmp= 62028 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111213670.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682529-1277475670/watcher-2682529-1277475670 -o /tmp/evaluation-result-2682529-1277475670/solver-2682529-1277475670 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682529-1277475670.opb

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

MD5SUM BENCH= b39cb5acbcabe453d1995603b90c4d93
RANDOM SEED=240930374

node027.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		: 2800.261
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	: 5600.52
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		: 2800.261
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:       1806312 kB
Buffers:         34296 kB
Cached:         128360 kB
SwapCached:       9196 kB
Active:          63480 kB
Inactive:       112244 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1806312 kB
SwapTotal:     4192956 kB
SwapFree:      4136184 kB
Dirty:            1996 kB
Writeback:           0 kB
AnonPages:       11716 kB
Mapped:           8396 kB
Slab:            55052 kB
PageTables:       4164 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   184172 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264952 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62028 MiB
End job on node027 at 2010-06-25 16:21:24