Trace number 2668908

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 0.1UNSAT 29.1356 29.1431

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110976730.opb
MD5SUM43d4c8496523b3f19caabfccdbd3abfa
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 benchmark0.135979
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 1183
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 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
29.08/29.12	c 26.401 8.11719 757 150977
29.08/29.14	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-2668908-1276432262/watcher-2668908-1276432262 -o /tmp/evaluation-result-2668908-1276432262/solver-2668908-1276432262 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668908-1276432262.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: 0.91 0.95 0.98 3/106 26123
/proc/meminfo: memFree=1848992/2059040 swapFree=4135652/4192956
[pid=26123] ppid=26121 vsize=3384 CPUtime=0
/proc/26123/stat : 26123 (pbct) R 26121 26123 25934 0 -1 4202496 545 0 0 0 0 0 0 0 20 0 1 0 18830190 3465216 468 1992294400 134512640 136485738 4293503104 18446744073709551615 135260256 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26123/statm: 846 470 196 482 0 362 0

[startup+0.0236201 s]
/proc/loadavg: 0.91 0.95 0.98 3/106 26123
/proc/meminfo: memFree=1848992/2059040 swapFree=4135652/4192956
[pid=26123] ppid=26121 vsize=4436 CPUtime=0.02
/proc/26123/stat : 26123 (pbct) R 26121 26123 25934 0 -1 4202496 809 0 0 0 2 0 0 0 20 0 1 0 18830190 4542464 732 1992294400 134512640 136485738 4293503104 18446744073709551615 135839975 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26123/statm: 1109 733 196 482 0 625 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 4436

[startup+0.100627 s]
/proc/loadavg: 0.91 0.95 0.98 3/106 26123
/proc/meminfo: memFree=1848992/2059040 swapFree=4135652/4192956
[pid=26123] ppid=26121 vsize=7408 CPUtime=0.09
/proc/26123/stat : 26123 (pbct) R 26121 26123 25934 0 -1 4202496 1551 0 0 0 9 0 0 0 20 0 1 0 18830190 7585792 1474 1992294400 134512640 136485738 4293503104 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26123/statm: 1852 1474 223 482 0 1368 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7408

[startup+0.300648 s]
/proc/loadavg: 0.91 0.95 0.98 3/106 26123
/proc/meminfo: memFree=1848992/2059040 swapFree=4135652/4192956
[pid=26123] ppid=26121 vsize=7664 CPUtime=0.29
/proc/26123/stat : 26123 (pbct) R 26121 26123 25934 0 -1 4202496 1609 0 0 0 27 2 0 0 20 0 1 0 18830190 7847936 1532 1992294400 134512640 136485738 4293503104 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26123/statm: 1916 1532 223 482 0 1432 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7664

[startup+0.700688 s]
/proc/loadavg: 0.91 0.95 0.98 3/106 26123
/proc/meminfo: memFree=1848992/2059040 swapFree=4135652/4192956
[pid=26123] ppid=26121 vsize=7792 CPUtime=0.69
/proc/26123/stat : 26123 (pbct) R 26121 26123 25934 0 -1 4202496 1631 0 0 0 62 7 0 0 20 0 1 0 18830190 7979008 1554 1992294400 134512640 136485738 4293503104 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26123/statm: 1948 1554 223 482 0 1464 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 7792

[startup+1.50077 s]
/proc/loadavg: 0.92 0.95 0.98 2/107 26124
/proc/meminfo: memFree=1843528/2059040 swapFree=4135652/4192956
[pid=26123] ppid=26121 vsize=7792 CPUtime=1.49
/proc/26123/stat : 26123 (pbct) R 26121 26123 25934 0 -1 4202496 1657 0 0 0 134 15 0 0 23 0 1 0 18830190 7979008 1580 1992294400 134512640 136485738 4293503104 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26123/statm: 1948 1580 223 482 0 1464 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7792

[startup+3.10093 s]
/proc/loadavg: 0.92 0.95 0.98 2/107 26124
/proc/meminfo: memFree=1843156/2059040 swapFree=4135652/4192956
[pid=26123] ppid=26121 vsize=7924 CPUtime=3.09
/proc/26123/stat : 26123 (pbct) R 26121 26123 25934 0 -1 4202496 1677 0 0 0 278 31 0 0 25 0 1 0 18830190 8114176 1600 1992294400 134512640 136485738 4293503104 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26123/statm: 1981 1600 223 482 0 1497 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 7924

[startup+6.30126 s]
/proc/loadavg: 0.93 0.96 0.98 2/107 26124
/proc/meminfo: memFree=1842908/2059040 swapFree=4135652/4192956
[pid=26123] ppid=26121 vsize=8052 CPUtime=6.29
/proc/26123/stat : 26123 (pbct) R 26121 26123 25934 0 -1 4202496 1703 0 0 0 568 61 0 0 25 0 1 0 18830190 8245248 1626 1992294400 134512640 136485738 4293503104 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26123/statm: 2013 1626 223 482 0 1529 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 8052

[startup+12.7009 s]
/proc/loadavg: 0.93 0.96 0.98 2/107 26124
/proc/meminfo: memFree=1842660/2059040 swapFree=4135652/4192956
[pid=26123] ppid=26121 vsize=8180 CPUtime=12.69
/proc/26123/stat : 26123 (pbct) R 26121 26123 25934 0 -1 4202496 1745 0 0 0 1148 121 0 0 25 0 1 0 18830190 8376320 1668 1992294400 134512640 136485738 4293503104 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26123/statm: 2045 1668 223 482 0 1561 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 8180

[startup+25.5002 s]
/proc/loadavg: 0.94 0.96 0.98 2/107 26124
/proc/meminfo: memFree=1842536/2059040 swapFree=4135652/4192956
[pid=26123] ppid=26121 vsize=8308 CPUtime=25.49
/proc/26123/stat : 26123 (pbct) R 26121 26123 25934 0 -1 4202496 1775 0 0 0 2308 241 0 0 25 0 1 0 18830190 8507392 1698 1992294400 134512640 136485738 4293503104 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26123/statm: 2077 1698 223 482 0 1593 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 8308

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

[startup+27.1004 s]
/proc/loadavg: 0.95 0.96 0.98 2/107 26124
/proc/meminfo: memFree=1842536/2059040 swapFree=4135652/4192956
[pid=26123] ppid=26121 vsize=8308 CPUtime=27.09
/proc/26123/stat : 26123 (pbct) R 26121 26123 25934 0 -1 4202496 1780 0 0 0 2455 254 0 0 25 0 1 0 18830190 8507392 1703 1992294400 134512640 136485738 4293503104 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26123/statm: 2077 1703 223 482 0 1593 0
Current children cumulated CPU time (s) 27.09
Current children cumulated vsize (KiB) 8308

[startup+27.9005 s]
/proc/loadavg: 0.95 0.96 0.98 2/107 26124
/proc/meminfo: memFree=1842536/2059040 swapFree=4135652/4192956
[pid=26123] ppid=26121 vsize=8308 CPUtime=27.89
/proc/26123/stat : 26123 (pbct) R 26121 26123 25934 0 -1 4202496 1780 0 0 0 2529 260 0 0 25 0 1 0 18830190 8507392 1703 1992294400 134512640 136485738 4293503104 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26123/statm: 2077 1703 223 482 0 1593 0
Current children cumulated CPU time (s) 27.89
Current children cumulated vsize (KiB) 8308

[startup+28.7016 s]
/proc/loadavg: 0.95 0.96 0.98 2/107 26124
/proc/meminfo: memFree=1842536/2059040 swapFree=4135652/4192956
[pid=26123] ppid=26121 vsize=8308 CPUtime=28.68
/proc/26123/stat : 26123 (pbct) R 26121 26123 25934 0 -1 4202496 1782 0 0 0 2601 267 0 0 25 0 1 0 18830190 8507392 1705 1992294400 134512640 136485738 4293503104 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26123/statm: 2077 1705 223 482 0 1593 0
Current children cumulated CPU time (s) 28.68
Current children cumulated vsize (KiB) 8308

[startup+29.1016 s]
/proc/loadavg: 0.95 0.96 0.98 2/107 26124
/proc/meminfo: memFree=1842536/2059040 swapFree=4135652/4192956
[pid=26123] ppid=26121 vsize=8308 CPUtime=29.08
/proc/26123/stat : 26123 (pbct) R 26121 26123 25934 0 -1 4202496 1785 0 0 0 2637 271 0 0 25 0 1 0 18830190 8507392 1708 1992294400 134512640 136485738 4293503104 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26123/statm: 2077 1708 223 482 0 1593 0
Current children cumulated CPU time (s) 29.08
Current children cumulated vsize (KiB) 8308

Child status: 0
Real time (s): 29.1431
CPU time (s): 29.1356
CPU user time (s): 26.414
CPU system time (s): 2.72159
CPU usage (%): 99.9743
Max. virtual memory (cumulated for all children) (KiB): 8308

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 26.414
system time used= 2.72159
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1809
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= 68

runsolver used 0.050992 second user time and 0.143978 second system time

The end

Launcher Data 

Begin job on node002 at 2010-06-13 14:31:02
IDJOB=2668908
IDBENCH=1240
IDSOLVER=1170
FILE ID=node002/2668908-1276432262
PBS_JOBID= 11173318
Free space on /tmp= 62400 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1110976730.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668908-1276432262/watcher-2668908-1276432262 -o /tmp/evaluation-result-2668908-1276432262/solver-2668908-1276432262 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668908-1276432262.opb

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

MD5SUM BENCH= 43d4c8496523b3f19caabfccdbd3abfa
RANDOM SEED=525982852

node002.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	: 5599.36
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1849396 kB
Buffers:         18992 kB
Cached:         114820 kB
SwapCached:       9944 kB
Active:          67852 kB
Inactive:        77972 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1849396 kB
SwapTotal:     4192956 kB
SwapFree:      4135652 kB
Dirty:            2092 kB
Writeback:           4 kB
AnonPages:       10684 kB
Mapped:           9172 kB
Slab:            41984 kB
PageTables:       3956 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   179812 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= 62396 MiB
End job on node002 at 2010-06-13 14:31:32