Trace number 269009

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 3.1SAT 10.5374 10.5596

DiagnosticValue
CHECKS57214800
NODES484

General information on the benchmark

Nametightness/tightness0.9/
rand-2-40-180-84-900-19_ext.xml
MD5SUMc41247cd3da03939a1118f14a04926d1
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.85972
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables40
Number of constraints84
Maximum constraint arity2
Maximum domain size180
Number of constraints which are defined in extension84
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

10.55	s SATISFIABLE
10.55	v 130 62 97 32 79 45 67 28 44 88 122 2 2 71 127 12 159 48 125 25 11 35 3 112 0 172 54 1 96 1 121 11 50 27 36 31 53 148 88 17 
10.55	d CHECKS 5.72148e+07
10.55	d NODES 484

Verifier Data (download as text)

OK

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node30/watcher-269009-1168980126 -o ROOT/results/node30/solver-269009-1168980126 -C 1800 -M 900 /tmp/evaluation/269009-1168980126/VALCSP /tmp/evaluation/269009-1168980126/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: 0.00 0.32 0.57 3/81 20140
/proc/meminfo: memFree=1590872/2055920 swapFree=4167328/4192956
[pid=20139] ppid=20137 vsize=136 CPUtime=0
/proc/20139/stat : 20139 (VALCSP) R 20137 20139 19896 0 -1 4194304 26 0 0 0 0 0 0 0 18 0 1 0 246407960 139264 11 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 7014064 0 0 4096 0 0 0 0 17 0 0 0
/proc/20139/statm: 35 20 15 8 0 2 0

[startup+0.107308 s]
/proc/loadavg: 0.00 0.32 0.57 3/81 20140
/proc/meminfo: memFree=1590872/2055920 swapFree=4167328/4192956
[pid=20139] ppid=20137 vsize=1600 CPUtime=0.1
/proc/20139/stat : 20139 (VALCSP) R 20137 20139 19896 0 -1 4194304 154 0 0 0 10 0 0 0 18 0 1 0 246407960 1638400 132 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 7476293 0 0 4096 0 0 0 0 17 0 0 0
/proc/20139/statm: 400 132 64 8 0 72 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1600

[startup+0.515333 s]
/proc/loadavg: 0.00 0.32 0.57 3/81 20140
/proc/meminfo: memFree=1590872/2055920 swapFree=4167328/4192956
[pid=20139] ppid=20137 vsize=1996 CPUtime=0.5
/proc/20139/stat : 20139 (VALCSP) R 20137 20139 19896 0 -1 4194304 260 0 0 0 50 0 0 0 22 0 1 0 246407960 2043904 238 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 7476348 0 0 4096 0 0 0 0 17 0 0 0
/proc/20139/statm: 499 238 64 8 0 171 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 1996

[startup+1.33639 s]
/proc/loadavg: 0.00 0.32 0.57 2/82 20144
/proc/meminfo: memFree=1586192/2055920 swapFree=4167328/4192956
[pid=20139] ppid=20137 vsize=2788 CPUtime=1.32
/proc/20139/stat : 20139 (VALCSP) R 20137 20139 19896 0 -1 4194304 446 0 0 0 131 1 0 0 25 0 1 0 246407960 2854912 424 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 7476311 0 0 4096 0 0 0 0 17 0 0 0
/proc/20139/statm: 697 424 64 8 0 369 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 2788

[startup+2.9735 s]
/proc/loadavg: 0.00 0.32 0.57 2/81 20158
/proc/meminfo: memFree=1584520/2055920 swapFree=4167328/4192956
[pid=20139] ppid=20137 vsize=4372 CPUtime=2.95
/proc/20139/stat : 20139 (VALCSP) R 20137 20139 19896 0 -1 4194304 845 0 0 0 294 1 0 0 25 0 1 0 246407960 4476928 823 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 7476348 0 0 4096 0 0 0 0 17 0 0 0
/proc/20139/statm: 1093 823 64 8 0 765 0
Current children cumulated CPU time (s) 2.95
Current children cumulated vsize (KiB) 4372

[startup+6.25572 s]
/proc/loadavg: 0.08 0.33 0.57 2/81 20158
/proc/meminfo: memFree=1581448/2055920 swapFree=4167328/4192956
[pid=20139] ppid=20137 vsize=7440 CPUtime=6.22
/proc/20139/stat : 20139 (VALCSP) R 20137 20139 19896 0 -1 4194304 1616 0 0 0 621 1 0 0 25 0 1 0 246407960 7618560 1594 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 0 0 0
/proc/20139/statm: 1860 1594 64 8 0 1532 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 7440

Child status: 0
Real time (s): 10.5596
CPU time (s): 10.5374
CPU user time (s): 10.4994
CPU system time (s): 0.037994
CPU usage (%): 99.7899
Max. virtual memory (cumulated for all children) (KiB): 21448

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 10.4994
system time used= 0.037994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5138
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= 8
involuntary context switches= 340

runsolver used 0.011998 s user time and 0.032994 s system time

The end

Launcher Data (download as text)

Begin job on node30 on Tue Jan 16 20:42:12 UTC 2007


IDJOB= 269009
IDBENCH= 5832
IDSOLVER= 90
FILE ID= node30/269009-1168980126

PBS_JOBID= 3566294

Free space on /tmp= 66563 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/tightness/tightness0.9/rand-2-40-180-84-900-19_ext.xml
COMMAND LINE= /tmp/evaluation/269009-1168980126/VALCSP /tmp/evaluation/269009-1168980126/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node30/watcher-269009-1168980126 -o ROOT/results/node30/solver-269009-1168980126 -C 1800 -M 900  /tmp/evaluation/269009-1168980126/VALCSP /tmp/evaluation/269009-1168980126/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  c41247cd3da03939a1118f14a04926d1

RANDOM SEED= 374308096

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		: 3000.234
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		: 3000.234
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:       1591352 kB
Buffers:         54120 kB
Cached:         297844 kB
SwapCached:       2316 kB
Active:         193740 kB
Inactive:       192244 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1591352 kB
SwapTotal:     4192956 kB
SwapFree:      4167328 kB
Dirty:            1956 kB
Writeback:           0 kB
Mapped:          49364 kB
Slab:            63708 kB
Committed_AS:  4677028 kB
PageTables:       2080 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= 66561 MiB



End job on node30 on Tue Jan 16 20:42:31 UTC 2007