Trace number 2080544

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
Mistral 1.545UNSAT 110.698 111.733

DiagnosticValue
ASSIGNMENTS23353
CHECKS30765700
NODES23353

General information on the benchmark

Namecsp/queensKnights/
normalized-queensKnights-100-5-add.xml
MD5SUM322bbcff3f69f7245f51580899f28315
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 benchmark20.8018
Satisfiable
(Un)Satisfiability was proved
Number of variables105
Number of constraints4960
Maximum constraint arity2
Maximum domain size10000
Number of constraints which are defined in extension0
Number of constraints which are defined in intension4960
Global constraints used (with number of constraints)

Solver Data 

0.00/0.05	c mistral version 1.545
110.56/111.61	s UNSATISFIABLE
110.56/111.61	d CHECKS 30765716
110.56/111.61	d ASSIGNMENTS 23353
110.56/111.61	d NODES 23353 BACKTRACKS 22794 FAILURES 22795 RUNTIME 110.26 TOTALTIME 110.59 NODES/s 211.799 CHECKS/s 279029

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2080544-1247370059/watcher-2080544-1247370059 -o /tmp/evaluation-result-2080544-1247370059/solver-2080544-1247370059 -C 1800 -W 2000 -M 900 /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2080544-1247370059.xml 

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): 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


[startup+0 s]
/proc/loadavg: 2.57 2.20 2.06 4/81 25412
/proc/meminfo: memFree=1613744/2055920 swapFree=4192812/4192956
[pid=25412] ppid=25410 vsize=8784 CPUtime=0.19
/proc/25412/stat : 25412 (ld-linux.so.2) R 25410 25412 25078 0 -1 4194304 1423 0 0 0 19 0 0 0 19 0 1 0 24071884 8994816 1402 996147200 1448431616 1448550632 4294956208 18446744073709551615 134613268 0 0 4096 0 0 0 0 17 1 0 0
/proc/25412/statm: 2196 1402 378 29 0 1011 0

[startup+0.299559 s]
/proc/loadavg: 2.57 2.20 2.06 4/81 25412
/proc/meminfo: memFree=1613744/2055920 swapFree=4192812/4192956
[pid=25412] ppid=25410 vsize=21252 CPUtime=0.29
/proc/25412/stat : 25412 (ld-linux.so.2) R 25410 25412 25078 0 -1 4194304 4547 0 0 0 27 2 0 0 19 0 1 0 24071884 21762048 4512 996147200 1448431616 1448550632 4294956208 18446744073709551615 4157378808 0 0 4096 0 0 0 0 17 1 0 0
/proc/25412/statm: 5313 4512 406 29 0 4128 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 21252

[startup+0.302549 s]
/proc/loadavg: 2.57 2.20 2.06 4/81 25412
/proc/meminfo: memFree=1613744/2055920 swapFree=4192812/4192956
[pid=25412] ppid=25410 vsize=22044 CPUtime=0.29
/proc/25412/stat : 25412 (ld-linux.so.2) R 25410 25412 25078 0 -1 4194304 4753 0 0 0 27 2 0 0 19 0 1 0 24071884 22573056 4718 996147200 1448431616 1448550632 4294956208 18446744073709551615 4157379570 0 0 4096 0 0 0 0 17 1 0 0
/proc/25412/statm: 5511 4718 406 29 0 4326 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 22044

[startup+0.401568 s]
/proc/loadavg: 2.57 2.20 2.06 4/81 25412
/proc/meminfo: memFree=1613744/2055920 swapFree=4192812/4192956
[pid=25412] ppid=25410 vsize=35320 CPUtime=0.39
/proc/25412/stat : 25412 (ld-linux.so.2) R 25410 25412 25078 0 -1 4194304 8078 0 0 0 35 4 0 0 20 0 1 0 24071884 36167680 8043 996147200 1448431616 1448550632 4294956208 18446744073709551615 135117584 0 0 4096 0 0 0 0 17 1 0 0
/proc/25412/statm: 8830 8043 427 29 0 7645 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 35320

[startup+0.702603 s]
/proc/loadavg: 2.57 2.20 2.06 4/81 25412
/proc/meminfo: memFree=1613744/2055920 swapFree=4192812/4192956
[pid=25412] ppid=25410 vsize=36732 CPUtime=0.69
/proc/25412/stat : 25412 (ld-linux.so.2) R 25410 25412 25078 0 -1 4194304 8393 0 0 0 65 4 0 0 23 0 1 0 24071884 37613568 8358 996147200 1448431616 1448550632 4294956208 18446744073709551615 135117584 0 0 4096 0 0 0 0 17 1 0 0
/proc/25412/statm: 9183 8358 433 29 0 7998 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 36732

[startup+1.5027 s]
/proc/loadavg: 2.57 2.20 2.06 3/82 25413
/proc/meminfo: memFree=1579752/2055920 swapFree=4192812/4192956
[pid=25412] ppid=25410 vsize=39984 CPUtime=1.47
/proc/25412/stat : 25412 (ld-linux.so.2) R 25410 25412 25078 0 -1 4194304 9060 0 0 0 143 4 0 0 25 0 1 0 24071884 40943616 9025 996147200 1448431616 1448550632 4294956208 18446744073709551615 134836717 0 0 4096 0 0 0 0 17 1 0 0
/proc/25412/statm: 9996 9025 433 29 0 8811 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 39984

[startup+3.1019 s]
/proc/loadavg: 2.53 2.19 2.06 3/82 25413
/proc/meminfo: memFree=1574888/2055920 swapFree=4192812/4192956
[pid=25412] ppid=25410 vsize=45464 CPUtime=3.06
/proc/25412/stat : 25412 (ld-linux.so.2) R 25410 25412 25078 0 -1 4194304 10253 0 0 0 301 5 0 0 25 0 1 0 24071884 46555136 10218 996147200 1448431616 1448550632 4294956208 18446744073709551615 135161282 0 0 4096 0 0 0 0 17 1 0 0
/proc/25412/statm: 11366 10218 433 29 0 10181 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 45464

[startup+6.30127 s]
/proc/loadavg: 2.53 2.19 2.06 3/82 25413
/proc/meminfo: memFree=1574184/2055920 swapFree=4192812/4192956
[pid=25412] ppid=25410 vsize=45464 CPUtime=6.23
/proc/25412/stat : 25412 (ld-linux.so.2) R 25410 25412 25078 0 -1 4194304 10263 0 0 0 618 5 0 0 25 0 1 0 24071884 46555136 10228 996147200 1448431616 1448550632 4294956208 18446744073709551615 134820433 0 0 4096 0 0 0 0 17 1 0 0
/proc/25412/statm: 11366 10228 433 29 0 10181 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 45464

[startup+12.701 s]
/proc/loadavg: 2.45 2.19 2.05 3/82 25413
/proc/meminfo: memFree=1571048/2055920 swapFree=4192812/4192956
[pid=25412] ppid=25410 vsize=47708 CPUtime=12.57
/proc/25412/stat : 25412 (ld-linux.so.2) R 25410 25412 25078 0 -1 4194304 11030 0 0 0 1251 6 0 0 25 0 1 0 24071884 48852992 10995 996147200 1448431616 1448550632 4294956208 18446744073709551615 135161293 0 0 4096 0 0 0 0 17 1 0 0
/proc/25412/statm: 11927 10995 433 29 0 10742 0
Current children cumulated CPU time (s) 12.57
Current children cumulated vsize (KiB) 47708

[startup+25.5066 s]
/proc/loadavg: 2.38 2.18 2.05 3/82 25413
/proc/meminfo: memFree=1568104/2055920 swapFree=4192812/4192956
[pid=25412] ppid=25410 vsize=50216 CPUtime=25.25
/proc/25412/stat : 25412 (ld-linux.so.2) R 25410 25412 25078 0 -1 4194304 11732 0 0 0 2519 6 0 0 25 0 1 0 24071884 51421184 11697 996147200 1448431616 1448550632 4294956208 18446744073709551615 134829017 0 0 4096 0 0 0 0 17 1 0 0
/proc/25412/statm: 12554 11697 435 29 0 11369 0
Current children cumulated CPU time (s) 25.25
Current children cumulated vsize (KiB) 50216

[startup+51.1016 s]
/proc/loadavg: 2.25 2.16 2.05 3/82 25413
/proc/meminfo: memFree=1566760/2055920 swapFree=4192812/4192956
[pid=25412] ppid=25410 vsize=51140 CPUtime=50.62
/proc/25412/stat : 25412 (ld-linux.so.2) R 25410 25412 25078 0 -1 4194304 12047 0 0 0 5055 7 0 0 25 0 1 0 24071884 52367360 12012 996147200 1448431616 1448550632 4294956208 18446744073709551615 135117627 0 0 4096 0 0 0 0 17 1 0 0
/proc/25412/statm: 12785 12012 435 29 0 11600 0
Current children cumulated CPU time (s) 50.62
Current children cumulated vsize (KiB) 51140

[startup+102.302 s]
/proc/loadavg: 2.11 2.14 2.05 3/82 25413
/proc/meminfo: memFree=1566632/2055920 swapFree=4192812/4192956
[pid=25412] ppid=25410 vsize=51140 CPUtime=101.35
/proc/25412/stat : 25412 (ld-linux.so.2) R 25410 25412 25078 0 -1 4194304 12047 0 0 0 10128 7 0 0 25 0 1 0 24071884 52367360 12012 996147200 1448431616 1448550632 4294956208 18446744073709551615 135291466 0 0 4096 0 0 0 0 17 1 0 0
/proc/25412/statm: 12785 12012 435 29 0 11600 0
Current children cumulated CPU time (s) 101.35
Current children cumulated vsize (KiB) 51140

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

[startup+102.507 s]
/proc/loadavg: 2.10 2.13 2.05 3/82 25413
/proc/meminfo: memFree=1566632/2055920 swapFree=4192812/4192956
[pid=25412] ppid=25410 vsize=51140 CPUtime=101.55
/proc/25412/stat : 25412 (ld-linux.so.2) R 25410 25412 25078 0 -1 4194304 12047 0 0 0 10148 7 0 0 25 0 1 0 24071884 52367360 12012 996147200 1448431616 1448550632 4294956208 18446744073709551615 135268989 0 0 4096 0 0 0 0 17 1 0 0
/proc/25412/statm: 12785 12012 435 29 0 11600 0
Current children cumulated CPU time (s) 101.55
Current children cumulated vsize (KiB) 51140

[startup+105.701 s]
/proc/loadavg: 2.10 2.13 2.05 3/82 25413
/proc/meminfo: memFree=1566632/2055920 swapFree=4192812/4192956
[pid=25412] ppid=25410 vsize=51140 CPUtime=104.72
/proc/25412/stat : 25412 (ld-linux.so.2) R 25410 25412 25078 0 -1 4194304 12047 0 0 0 10465 7 0 0 25 0 1 0 24071884 52367360 12012 996147200 1448431616 1448550632 4294956208 18446744073709551615 134897000 0 0 4096 0 0 0 0 17 1 0 0
/proc/25412/statm: 12785 12012 435 29 0 11600 0
Current children cumulated CPU time (s) 104.72
Current children cumulated vsize (KiB) 51140

[startup+108.902 s]
/proc/loadavg: 2.09 2.13 2.05 3/82 25413
/proc/meminfo: memFree=1566632/2055920 swapFree=4192812/4192956
[pid=25412] ppid=25410 vsize=51140 CPUtime=107.89
/proc/25412/stat : 25412 (ld-linux.so.2) R 25410 25412 25078 0 -1 4194304 12047 0 0 0 10782 7 0 0 25 0 1 0 24071884 52367360 12012 996147200 1448431616 1448550632 4294956208 18446744073709551615 135290111 0 0 4096 0 0 0 0 17 1 0 0
/proc/25412/statm: 12785 12012 435 29 0 11600 0
Current children cumulated CPU time (s) 107.89
Current children cumulated vsize (KiB) 51140

[startup+110.502 s]
/proc/loadavg: 2.09 2.13 2.05 3/82 25413
/proc/meminfo: memFree=1566632/2055920 swapFree=4192812/4192956
[pid=25412] ppid=25410 vsize=51140 CPUtime=109.47
/proc/25412/stat : 25412 (ld-linux.so.2) R 25410 25412 25078 0 -1 4194304 12047 0 0 0 10940 7 0 0 25 0 1 0 24071884 52367360 12012 996147200 1448431616 1448550632 4294956208 18446744073709551615 134897005 0 0 4096 0 0 0 0 17 1 0 0
/proc/25412/statm: 12785 12012 435 29 0 11600 0
Current children cumulated CPU time (s) 109.47
Current children cumulated vsize (KiB) 51140

[startup+111.307 s]
/proc/loadavg: 2.09 2.13 2.05 3/82 25413
/proc/meminfo: memFree=1566632/2055920 swapFree=4192812/4192956
[pid=25412] ppid=25410 vsize=51140 CPUtime=110.27
/proc/25412/stat : 25412 (ld-linux.so.2) R 25410 25412 25078 0 -1 4194304 12047 0 0 0 11020 7 0 0 25 0 1 0 24071884 52367360 12012 996147200 1448431616 1448550632 4294956208 18446744073709551615 134897005 0 0 4096 0 0 0 0 17 1 0 0
/proc/25412/statm: 12785 12012 435 29 0 11600 0
Current children cumulated CPU time (s) 110.27
Current children cumulated vsize (KiB) 51140

[startup+111.702 s]
/proc/loadavg: 2.09 2.13 2.05 3/82 25413
/proc/meminfo: memFree=1566632/2055920 swapFree=4192812/4192956
[pid=25412] ppid=25410 vsize=51140 CPUtime=110.66
/proc/25412/stat : 25412 (ld-linux.so.2) R 25410 25412 25078 0 -1 4194304 12074 0 0 0 11059 7 0 0 25 0 1 0 24071884 52367360 12039 996147200 1448431616 1448550632 4294956208 18446744073709551615 4157374930 0 0 4096 0 0 0 0 17 1 0 0
/proc/25412/statm: 12785 12039 462 29 0 11600 0
Current children cumulated CPU time (s) 110.66
Current children cumulated vsize (KiB) 51140

Child status: 0
Real time (s): 111.733
CPU time (s): 110.698
CPU user time (s): 110.616
CPU system time (s): 0.081987
CPU usage (%): 99.0737
Max. virtual memory (cumulated for all children) (KiB): 51140

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 110.616
system time used= 0.081987
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 12082
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= 25
involuntary context switches= 2437

runsolver used 0.138978 second user time and 0.359945 second system time

The end

Launcher Data 

Begin job on node33 at 2009-07-12 05:40:59
IDJOB=2080544
IDBENCH=57105
IDSOLVER=769
FILE ID=node33/2080544-1247370059
PBS_JOBID= 9507147
Free space on /tmp= 66448 MiB

SOLVER NAME= Mistral 1.545
BENCH NAME= CPAI08/csp/queensKnights/normalized-queensKnights-100-5-add.xml
COMMAND LINE= /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2080544-1247370059/watcher-2080544-1247370059 -o /tmp/evaluation-result-2080544-1247370059/solver-2080544-1247370059 -C 1800 -W 2000 -M 900  /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2080544-1247370059.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 322bbcff3f69f7245f51580899f28315
RANDOM SEED=2098909210

node33.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.229
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		: 3000.229
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:       1614224 kB
Buffers:         37604 kB
Cached:         171428 kB
SwapCached:          0 kB
Active:         297720 kB
Inactive:        85560 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1614224 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1800 kB
Writeback:           0 kB
Mapped:         194696 kB
Slab:            43352 kB
Committed_AS:   408900 kB
PageTables:       2148 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= 66448 MiB
End job on node33 at 2009-07-12 05:42:51