Trace number 200574

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, and are wall clock time (not CPU 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
CSPtoSAT+minisat 0.3UNSAT 754.42 760.104

General information on the benchmark

NamequeensKnights/
queensKnights-10-5-add.xml
MD5SUM4e0c486a909311b63b83c4f87ae0d156
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.12598
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables15
Number of constraints55
Maximum constraint arity2
Maximum domain size100
Number of constraints which are defined in extension0
Number of constraints which are defined in intension55
Global constraints used (with number of constraints)

Solver Data (download as text)

0.01	c This is CSPtoSAT+minisat version 0.3
0.01	c (c) 2006 roussel@cril.univ-artois.fr
0.01	
0.01	c This solver internally uses a modified version of MiniSat2 version 061112
0.01	c MiniSat -- Copyright (c) 2003-2006, Niklas Een, Niklas Sorensson
0.01	
0.01	c parsing...
0.02	c ...done
0.02	c #SATvar=1772 #SATclauses=3495 #CSPpredicates=55
760.09	c SAT problem is solved
760.09	restarts              : 16
760.09	conflicts             : 122501         (162 /sec)
760.09	decisions             : 187004         (1.46 % random) (248 /sec)
760.09	propagations          : 31387450       (41607 /sec)
760.09	conflict literals     : 5734017        (1.17 % deleted)
760.09	Memory used           : 9.95 MB
760.09	CPU time              : 754.373 s
760.09	
760.09	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node40/watcher-200574-1168055431 -o ROOT/results/node40/solver-200574-1168055431 -C 1800 -M 900 /tmp/evaluation/200574-1168055431/CSPtoSAT+minisat /tmp/evaluation/200574-1168055431/unknown.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 921600 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 972800 KiB
Current StackSize limit: 10240 KiB

/proc/loadavg: 1.69 1.93 1.90 5/71 22609
/proc/meminfo: memFree=1373928/2055920 swapFree=4192812/4192956

[startup+0.10385 s]
/proc/loadavg: 1.69 1.93 1.90 5/71 22609
/proc/meminfo: memFree=1373928/2055920 swapFree=4192812/4192956
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 0

[startup+0.511897 s]
/proc/loadavg: 1.69 1.93 1.90 5/71 22609
/proc/meminfo: memFree=1373928/2055920 swapFree=4192812/4192956
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 0

[startup+1.333 s]
/proc/loadavg: 1.69 1.93 1.90 2/68 22621
/proc/meminfo: memFree=1373360/2055920 swapFree=4192812/4192956
[pid=22608] ppid=22595 vsize=7336 CPUtime=1.32
/proc/22608/stat : 22608 (CSPtoSAT+minisa) R 22595 22608 21679 0 -1 4194304 970 0 0 0 132 0 0 0 25 0 1 0 153943196 7512064 926 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134671174 0 0 4096 0 0 0 0 17 0 0 0
/proc/22608/statm: 1834 926 720 52 0 202 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 7336

[startup+2.97422 s]
/proc/loadavg: 1.64 1.92 1.90 4/71 22625
/proc/meminfo: memFree=1372824/2055920 swapFree=4192812/4192956
[pid=22608] ppid=22595 vsize=7472 CPUtime=2.95
/proc/22608/stat : 22608 (CSPtoSAT+minisa) R 22595 22608 21679 0 -1 4194304 1004 0 0 0 295 0 0 0 25 0 1 0 153943196 7651328 960 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134687525 0 0 4096 0 0 0 0 17 0 0 0
/proc/22608/statm: 1868 960 720 52 0 236 0
Current children cumulated CPU time (s) 2.95
Current children cumulated vsize (KiB) 7472

[startup+6.25064 s]
/proc/loadavg: 1.64 1.92 1.90 2/68 22629
/proc/meminfo: memFree=1373040/2055920 swapFree=4192812/4192956
[pid=22608] ppid=22595 vsize=7604 CPUtime=6.23
/proc/22608/stat : 22608 (CSPtoSAT+minisa) R 22595 22608 21679 0 -1 4194304 1048 0 0 0 623 0 0 0 25 0 1 0 153943196 7786496 1004 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134687566 0 0 4096 0 0 0 0 17 0 0 0
/proc/22608/statm: 1901 1004 720 52 0 269 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 7604

[startup+12.7085 s]
/proc/loadavg: 1.54 1.89 1.89 2/68 22630
/proc/meminfo: memFree=1374600/2055920 swapFree=4192812/4192956
[pid=22608] ppid=22595 vsize=7736 CPUtime=12.69
/proc/22608/stat : 22608 (CSPtoSAT+minisa) R 22595 22608 21679 0 -1 4194304 1080 0 0 0 1269 0 0 0 25 0 1 0 153943196 7921664 1036 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134687441 0 0 4096 0 0 0 0 17 0 0 0
/proc/22608/statm: 1934 1036 720 52 0 302 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 7736

[startup+25.5131 s]
/proc/loadavg: 1.45 1.86 1.88 2/68 22632
/proc/meminfo: memFree=1374152/2055920 swapFree=4192812/4192956
[pid=22608] ppid=22595 vsize=8000 CPUtime=25.48
/proc/22608/stat : 22608 (CSPtoSAT+minisa) R 22595 22608 21679 0 -1 4194304 1141 0 0 0 2548 0 0 0 25 0 1 0 153943196 8192000 1097 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134687525 0 0 4096 0 0 0 0 17 0 0 0
/proc/22608/statm: 2000 1097 720 52 0 368 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 8000

[startup+51.1465 s]
/proc/loadavg: 1.59 1.85 1.88 3/73 22658
/proc/meminfo: memFree=1048480/2055920 swapFree=4192812/4192956
[pid=22608] ppid=22595 vsize=8444 CPUtime=50.97
/proc/22608/stat : 22608 (CSPtoSAT+minisa) R 22595 22608 21679 0 -1 4194304 1241 0 0 0 5096 1 0 0 25 0 1 0 153943196 8646656 1197 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134687652 0 0 4096 0 0 0 0 17 1 0 0
/proc/22608/statm: 2111 1197 720 52 0 479 0
Current children cumulated CPU time (s) 50.97
Current children cumulated vsize (KiB) 8444

[startup+102.425 s]
/proc/loadavg: 1.82 1.87 1.88 3/73 22658
/proc/meminfo: memFree=1046880/2055920 swapFree=4192812/4192956
[pid=22608] ppid=22595 vsize=8840 CPUtime=101.86
/proc/22608/stat : 22608 (CSPtoSAT+minisa) R 22595 22608 21679 0 -1 4194304 1346 0 0 0 10185 1 0 0 25 0 1 0 153943196 9052160 1302 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134687324 0 0 4096 0 0 0 0 17 1 0 0
/proc/22608/statm: 2210 1302 720 52 0 578 0
Current children cumulated CPU time (s) 101.86
Current children cumulated vsize (KiB) 8840

[startup+162.432 s]
/proc/loadavg: 1.94 1.89 1.89 3/73 22658
/proc/meminfo: memFree=1045728/2055920 swapFree=4192812/4192956
[pid=22608] ppid=22595 vsize=9132 CPUtime=161.41
/proc/22608/stat : 22608 (CSPtoSAT+minisa) R 22595 22608 21679 0 -1 4194304 1431 0 0 0 16140 1 0 0 25 0 1 0 153943196 9351168 1387 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134687516 0 0 4096 0 0 0 0 17 1 0 0
/proc/22608/statm: 2283 1387 720 52 0 651 0
Current children cumulated CPU time (s) 161.41
Current children cumulated vsize (KiB) 9132

[startup+222.448 s]
/proc/loadavg: 2.02 1.93 1.90 3/73 22658
/proc/meminfo: memFree=1044896/2055920 swapFree=4192812/4192956
[pid=22608] ppid=22595 vsize=9396 CPUtime=220.97
/proc/22608/stat : 22608 (CSPtoSAT+minisa) R 22595 22608 21679 0 -1 4194304 1499 0 0 0 22095 2 0 0 25 0 1 0 153943196 9621504 1455 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134687525 0 0 4096 0 0 0 0 17 1 0 0
/proc/22608/statm: 2349 1455 720 52 0 717 0
Current children cumulated CPU time (s) 220.97
Current children cumulated vsize (KiB) 9396

[startup+282.466 s]
/proc/loadavg: 2.01 1.94 1.90 3/73 22658
/proc/meminfo: memFree=1044128/2055920 swapFree=4192812/4192956
[pid=22608] ppid=22595 vsize=9660 CPUtime=280.51
/proc/22608/stat : 22608 (CSPtoSAT+minisa) R 22595 22608 21679 0 -1 4194304 1547 0 0 0 28049 2 0 0 25 0 1 0 153943196 9891840 1503 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134668878 0 0 4096 0 0 0 0 17 1 0 0
/proc/22608/statm: 2415 1503 720 52 0 783 0
Current children cumulated CPU time (s) 280.51
Current children cumulated vsize (KiB) 9660

[startup+342.485 s]
/proc/loadavg: 2.06 1.96 1.91 3/73 22658
/proc/meminfo: memFree=1043424/2055920 swapFree=4192812/4192956
[pid=22608] ppid=22595 vsize=9792 CPUtime=340.03
/proc/22608/stat : 22608 (CSPtoSAT+minisa) R 22595 22608 21679 0 -1 4194304 1583 0 0 0 34000 3 0 0 25 0 1 0 153943196 10027008 1539 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134687525 0 0 4096 0 0 0 0 17 1 0 0
/proc/22608/statm: 2448 1539 720 52 0 816 0
Current children cumulated CPU time (s) 340.03
Current children cumulated vsize (KiB) 9792

[startup+402.516 s]
/proc/loadavg: 2.02 1.97 1.91 3/73 22658
/proc/meminfo: memFree=1042720/2055920 swapFree=4192812/4192956
[pid=22608] ppid=22595 vsize=9924 CPUtime=399.54
/proc/22608/stat : 22608 (CSPtoSAT+minisa) R 22595 22608 21679 0 -1 4194304 1618 0 0 0 39951 3 0 0 25 0 1 0 153943196 10162176 1574 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134687525 0 0 4096 0 0 0 0 17 1 0 0
/proc/22608/statm: 2481 1574 720 52 0 849 0
Current children cumulated CPU time (s) 399.54
Current children cumulated vsize (KiB) 9924

[startup+462.542 s]
/proc/loadavg: 2.01 1.97 1.91 3/73 22658
/proc/meminfo: memFree=1042144/2055920 swapFree=4192812/4192956
[pid=22608] ppid=22595 vsize=10056 CPUtime=459.05
/proc/22608/stat : 22608 (CSPtoSAT+minisa) R 22595 22608 21679 0 -1 4194304 1642 0 0 0 45902 3 0 0 25 0 1 0 153943196 10297344 1598 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134687525 0 0 4096 0 0 0 0 17 1 0 0
/proc/22608/statm: 2514 1598 720 52 0 882 0
Current children cumulated CPU time (s) 459.05
Current children cumulated vsize (KiB) 10056

[startup+522.57 s]
/proc/loadavg: 2.00 1.97 1.91 3/73 22658
/proc/meminfo: memFree=1041504/2055920 swapFree=4192812/4192956
[pid=22608] ppid=22595 vsize=10056 CPUtime=518.57
/proc/22608/stat : 22608 (CSPtoSAT+minisa) R 22595 22608 21679 0 -1 4194304 1662 0 0 0 51854 3 0 0 25 0 1 0 153943196 10297344 1618 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134687525 0 0 4096 0 0 0 0 17 1 0 0
/proc/22608/statm: 2514 1618 720 52 0 882 0
Current children cumulated CPU time (s) 518.57
Current children cumulated vsize (KiB) 10056

[startup+582.593 s]
/proc/loadavg: 2.00 1.97 1.91 3/73 22658
/proc/meminfo: memFree=1040928/2055920 swapFree=4192812/4192956
[pid=22608] ppid=22595 vsize=10056 CPUtime=578.09
/proc/22608/stat : 22608 (CSPtoSAT+minisa) R 22595 22608 21679 0 -1 4194304 1671 0 0 0 57806 3 0 0 25 0 1 0 153943196 10297344 1627 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134687525 0 0 4096 0 0 0 0 17 1 0 0
/proc/22608/statm: 2514 1627 720 52 0 882 0
Current children cumulated CPU time (s) 578.09
Current children cumulated vsize (KiB) 10056

[startup+642.633 s]
/proc/loadavg: 2.00 1.97 1.91 3/79 22742
/proc/meminfo: memFree=1039024/2055920 swapFree=4192812/4192956
[pid=22608] ppid=22595 vsize=10188 CPUtime=637.62
/proc/22608/stat : 22608 (CSPtoSAT+minisa) R 22595 22608 21679 0 -1 4194304 1680 0 0 0 63758 4 0 0 25 0 1 0 153943196 10432512 1636 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134671280 0 0 4096 0 0 0 0 17 1 0 0
/proc/22608/statm: 2547 1636 720 52 0 915 0
Current children cumulated CPU time (s) 637.62
Current children cumulated vsize (KiB) 10188

[startup+702.684 s]
/proc/loadavg: 2.00 1.97 1.91 3/79 22828
/proc/meminfo: memFree=1038384/2055920 swapFree=4192812/4192956
[pid=22608] ppid=22595 vsize=10188 CPUtime=697.29
/proc/22608/stat : 22608 (CSPtoSAT+minisa) R 22595 22608 21679 0 -1 4194304 1681 0 0 0 69725 4 0 0 25 0 1 0 153943196 10432512 1637 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134687525 0 0 4096 0 0 0 0 17 1 0 0
/proc/22608/statm: 2547 1637 720 52 0 915 0
Current children cumulated CPU time (s) 697.29
Current children cumulated vsize (KiB) 10188

Child status: 0
Real time (s): 760.104
CPU time (s): 754.42
CPU user time (s): 754.376
CPU system time (s): 0.043993
CPU usage (%): 99.2522
Max. virtual memory (cumulated for all children) (KiB): 10188

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 754.376
system time used= 0.043993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1693
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= 11
involuntary context switches= 13592

runsolver used 0.825874 s user time and 2.19966 s system time

The end

Launcher Data (download as text)

Begin job on node40 on Sat Jan  6 03:50:33 UTC 2007


IDJOB= 200574
IDBENCH= 3715
FILE ID= node40/200574-1168055431

PBS_JOBID= 3475472

Free space on /tmp= 66545 MiB

BENCH NAME= HOME/pub/bench/CPAI06/queensKnights/queensKnights-10-5-add.xml
COMMAND LINE= /tmp/evaluation/200574-1168055431/CSPtoSAT+minisat /tmp/evaluation/200574-1168055431/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node40/watcher-200574-1168055431 -o ROOT/results/node40/solver-200574-1168055431 -C 1800 -M 900  /tmp/evaluation/200574-1168055431/CSPtoSAT+minisat /tmp/evaluation/200574-1168055431/unknown.xml

META MD5SUM SOLVER= 0ab327eaa5be249b47b2f4b19927f0b0
MD5SUM BENCH=  4e0c486a909311b63b83c4f87ae0d156

RANDOM SEED= 513674634

TIME LIMIT= 1800 seconds

MEMORY LIMIT= 900 MiB


/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		: 3000.239
cache size	: 2048 KB
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 pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
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		: 3000.239
cache size	: 2048 KB
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 pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1376792 kB
Buffers:         60376 kB
Cached:         512660 kB
SwapCached:          0 kB
Active:          88348 kB
Inactive:       505176 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1376792 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1648 kB
Writeback:           0 kB
Mapped:          30636 kB
Slab:            71356 kB
Committed_AS:  2909896 kB
PageTables:       1620 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66538 MiB



End job on node40 on Sat Jan  6 04:03:19 UTC 2007