Trace number 200399

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
VALCSP 3.0UNSAT 180.829 182.666

DiagnosticValue
CHECKS19072000000
NODES451

General information on the benchmark

NamequeensKnights/
queensKnights-25-5-add.xml
MD5SUMb90f8a45328f6041d4909cc0c2664efa
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 benchmark1.76173
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables30
Number of constraints310
Maximum constraint arity2
Maximum domain size625
Number of constraints which are defined in extension0
Number of constraints which are defined in intension310
Global constraints used (with number of constraints)

Solver Data (download as text)

182.66	s UNSATISFIABLE
182.66	d CHECKS 1.9072e+10
182.66	d NODES 451
182.66

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/node21/watcher-200399-1168142427 -o ROOT/results/node21/solver-200399-1168142427 -C 1800 -M 900 /tmp/evaluation/200399-1168142427/VALCSP /tmp/evaluation/200399-1168142427/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: 1.92 1.98 2.04 5/86 6287
/proc/meminfo: memFree=1761048/2055920 swapFree=4156304/4192956
[pid=6286] ppid=6284 vsize=1600 CPUtime=0
/proc/6286/stat : 6286 (VALCSP) R 6284 6286 3293 0 -1 4194304 136 0 0 0 0 0 0 0 20 0 1 0 162637200 1638400 114 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530766 0 0 4096 0 0 0 0 17 1 0 0
/proc/6286/statm: 400 114 64 8 0 72 0

[startup+0.106081 s]
/proc/loadavg: 1.92 1.98 2.04 5/86 6287
/proc/meminfo: memFree=1761048/2055920 swapFree=4156304/4192956
[pid=6286] ppid=6284 vsize=4108 CPUtime=0.09
/proc/6286/stat : 6286 (VALCSP) R 6284 6286 3293 0 -1 4194304 763 0 0 0 9 0 0 0 20 0 1 0 162637200 4206592 741 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/6286/statm: 1027 741 64 8 0 699 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4108

[startup+0.514154 s]
/proc/loadavg: 1.92 1.98 2.04 5/86 6287
/proc/meminfo: memFree=1761048/2055920 swapFree=4156304/4192956
[pid=6286] ppid=6284 vsize=5560 CPUtime=0.5
/proc/6286/stat : 6286 (VALCSP) R 6284 6286 3293 0 -1 4194304 1146 0 0 0 50 0 0 0 24 0 1 0 162637200 5693440 1124 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/6286/statm: 1390 1124 64 8 0 1062 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 5560

[startup+1.33631 s]
/proc/loadavg: 1.92 1.98 2.04 3/86 6287
/proc/meminfo: memFree=1752152/2055920 swapFree=4156304/4192956
[pid=6286] ppid=6284 vsize=11764 CPUtime=1.31
/proc/6286/stat : 6286 (VALCSP) R 6284 6286 3293 0 -1 4194304 2677 0 0 0 130 1 0 0 25 0 1 0 162637200 12046336 2655 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 1 0 0
/proc/6286/statm: 2941 2655 64 8 0 2613 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 11764

[startup+2.97463 s]
/proc/loadavg: 1.92 1.98 2.04 3/86 6287
/proc/meminfo: memFree=1744472/2055920 swapFree=4156304/4192956
[pid=6286] ppid=6284 vsize=17836 CPUtime=2.94
/proc/6286/stat : 6286 (VALCSP) R 6284 6286 3293 0 -1 4194304 4215 0 0 0 293 1 0 0 25 0 1 0 162637200 18264064 4193 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134524683 0 0 4096 0 0 0 0 17 1 0 0
/proc/6286/statm: 4459 4193 66 8 0 4131 0
Current children cumulated CPU time (s) 2.94
Current children cumulated vsize (KiB) 17836

[startup+6.25825 s]
/proc/loadavg: 1.93 1.98 2.04 3/86 6287
/proc/meminfo: memFree=1744408/2055920 swapFree=4156304/4192956
[pid=6286] ppid=6284 vsize=17836 CPUtime=6.19
/proc/6286/stat : 6286 (VALCSP) R 6284 6286 3293 0 -1 4194304 4215 0 0 0 618 1 0 0 25 0 1 0 162637200 18264064 4193 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134524789 0 0 4096 0 0 0 0 17 1 0 0
/proc/6286/statm: 4459 4193 66 8 0 4131 0
Current children cumulated CPU time (s) 6.19
Current children cumulated vsize (KiB) 17836

[startup+12.7215 s]
/proc/loadavg: 1.93 1.98 2.04 3/86 6287
/proc/meminfo: memFree=1744416/2055920 swapFree=4156304/4192956
[pid=6286] ppid=6284 vsize=17836 CPUtime=12.59
/proc/6286/stat : 6286 (VALCSP) R 6284 6286 3293 0 -1 4194304 4215 0 0 0 1258 1 0 0 25 0 1 0 162637200 18264064 4193 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134524702 0 0 4096 0 0 0 0 17 1 0 0
/proc/6286/statm: 4459 4193 66 8 0 4131 0
Current children cumulated CPU time (s) 12.59
Current children cumulated vsize (KiB) 17836

[startup+25.5389 s]
/proc/loadavg: 1.95 1.98 2.04 3/86 6287
/proc/meminfo: memFree=1744416/2055920 swapFree=4156304/4192956
[pid=6286] ppid=6284 vsize=17836 CPUtime=25.3
/proc/6286/stat : 6286 (VALCSP) R 6284 6286 3293 0 -1 4194304 4215 0 0 0 2529 1 0 0 25 0 1 0 162637200 18264064 4193 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134524680 0 0 4096 0 0 0 0 17 1 0 0
/proc/6286/statm: 4459 4193 66 8 0 4131 0
Current children cumulated CPU time (s) 25.3
Current children cumulated vsize (KiB) 17836

[startup+51.1947 s]
/proc/loadavg: 2.03 2.00 2.04 3/92 6369
/proc/meminfo: memFree=1743184/2055920 swapFree=4156304/4192956
[pid=6286] ppid=6284 vsize=17836 CPUtime=50.65
/proc/6286/stat : 6286 (VALCSP) R 6284 6286 3293 0 -1 4194304 4215 0 0 0 5063 2 0 0 25 0 1 0 162637200 18264064 4193 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134524642 0 0 4096 0 0 0 0 17 1 0 0
/proc/6286/statm: 4459 4193 66 8 0 4131 0
Current children cumulated CPU time (s) 50.65
Current children cumulated vsize (KiB) 17836

[startup+102.401 s]
/proc/loadavg: 2.01 2.00 2.04 3/92 6445
/proc/meminfo: memFree=1743192/2055920 swapFree=4156304/4192956
[pid=6286] ppid=6284 vsize=17836 CPUtime=101.31
/proc/6286/stat : 6286 (VALCSP) R 6284 6286 3293 0 -1 4194304 4215 0 0 0 10129 2 0 0 25 0 1 0 162637200 18264064 4193 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134524702 0 0 4096 0 0 0 0 17 1 0 0
/proc/6286/statm: 4459 4193 66 8 0 4131 0
Current children cumulated CPU time (s) 101.31
Current children cumulated vsize (KiB) 17836

[startup+162.425 s]
/proc/loadavg: 2.00 2.00 2.03 3/86 6485
/proc/meminfo: memFree=1744160/2055920 swapFree=4156304/4192956
[pid=6286] ppid=6284 vsize=17836 CPUtime=160.76
/proc/6286/stat : 6286 (VALCSP) R 6284 6286 3293 0 -1 4194304 4215 0 0 0 16073 3 0 0 25 0 1 0 162637200 18264064 4193 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134524702 0 0 4096 0 0 0 0 17 1 0 0
/proc/6286/statm: 4459 4193 66 8 0 4131 0
Current children cumulated CPU time (s) 160.76
Current children cumulated vsize (KiB) 17836

Child status: 0
Real time (s): 182.666
CPU time (s): 180.829
CPU user time (s): 180.793
CPU system time (s): 0.035994
CPU usage (%): 98.9938
Max. virtual memory (cumulated for all children) (KiB): 17836

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 180.793
system time used= 0.035994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4244
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= 7
involuntary context switches= 4173

runsolver used 0.207968 s user time and 0.58991 s system time

The end

Launcher Data (download as text)

Begin job on node21 on Sun Jan  7 04:00:27 UTC 2007


IDJOB= 200399
IDBENCH= 3705
FILE ID= node21/200399-1168142427

PBS_JOBID= 3478070

Free space on /tmp= 66562 MiB

BENCH NAME= HOME/pub/bench/CPAI06/queensKnights/queensKnights-25-5-add.xml
COMMAND LINE= /tmp/evaluation/200399-1168142427/VALCSP /tmp/evaluation/200399-1168142427/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node21/watcher-200399-1168142427 -o ROOT/results/node21/solver-200399-1168142427 -C 1800 -M 900  /tmp/evaluation/200399-1168142427/VALCSP /tmp/evaluation/200399-1168142427/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  b90f8a45328f6041d4909cc0c2664efa

RANDOM SEED= 10148660

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		: 3000.261
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		: 3000.261
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:       1761464 kB
Buffers:         48016 kB
Cached:         134940 kB
SwapCached:       2956 kB
Active:         136680 kB
Inactive:        94408 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1761464 kB
SwapTotal:     4192956 kB
SwapFree:      4156304 kB
Dirty:             184 kB
Writeback:           0 kB
Mapped:          57180 kB
Slab:            48320 kB
Committed_AS:  3167976 kB
PageTables:       2132 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= 66562 MiB



End job on node21 on Sun Jan  7 04:03:29 UTC 2007