Trace number 194913

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 3.0SAT 141.697 142.257

DiagnosticValue
CHECKS4459680000
NODES831752

General information on the benchmark

Namerandom/rand-2-50-23/
rand-2-50-23-587-230-22_ext.xml
MD5SUM8562e9e8a5ace187915608298ca5a4f7
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 benchmark141.697
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables50
Number of constraints465
Maximum constraint arity2
Maximum domain size23
Number of constraints which are defined in extension465
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

142.25	s SATISFIABLE
142.25	v 14 3 9 10 6 4 13 6 21 22 13 3 11 18 20 21 5 13 11 10 9 7 10 3 14 14 5 17 16 0 9 10 12 6 12 17 1 15 13 22 3 18 1 9 9 20 8 3 11 10 
142.25	d CHECKS 4.45968e+09
142.25	d NODES 831752
142.25

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/node10/watcher-194913-1168107821 -o ROOT/results/node10/solver-194913-1168107821 -C 1800 -M 900 /tmp/evaluation/194913-1168107821/VALCSP /tmp/evaluation/194913-1168107821/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: 2.05 2.01 2.00 5/98 6596
/proc/meminfo: memFree=1329976/2055920 swapFree=4178332/4192956
[pid=6595] ppid=6593 vsize=1468 CPUtime=0
/proc/6595/stat : 6595 (VALCSP) R 6593 6595 5241 0 -1 4194304 124 0 0 0 0 0 0 0 20 0 1 0 159177230 1503232 102 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 9348425 0 0 4096 0 0 0 0 17 1 0 0
/proc/6595/statm: 367 102 62 8 0 39 0

[startup+0.108678 s]
/proc/loadavg: 2.05 2.01 2.00 5/98 6596
/proc/meminfo: memFree=1329976/2055920 swapFree=4178332/4192956
[pid=6595] ppid=6593 vsize=2524 CPUtime=0.1
/proc/6595/stat : 6595 (VALCSP) R 6593 6595 5241 0 -1 4194304 384 0 0 0 10 0 0 0 20 0 1 0 159177230 2584576 362 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 9338678 0 0 4096 0 0 0 0 17 1 0 0
/proc/6595/statm: 631 362 62 8 0 303 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2524

[startup+0.51673 s]
/proc/loadavg: 2.05 2.01 2.00 5/98 6596
/proc/meminfo: memFree=1329976/2055920 swapFree=4178332/4192956
[pid=6595] ppid=6593 vsize=4900 CPUtime=0.5
/proc/6595/stat : 6595 (VALCSP) R 6593 6595 5241 0 -1 4194304 985 0 0 0 50 0 0 0 24 0 1 0 159177230 5017600 963 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134524776 0 0 4096 0 0 0 0 17 1 0 0
/proc/6595/statm: 1225 963 65 8 0 897 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 4900

[startup+1.33784 s]
/proc/loadavg: 2.05 2.01 2.00 3/98 6596
/proc/meminfo: memFree=1326328/2055920 swapFree=4178332/4192956
[pid=6595] ppid=6593 vsize=4900 CPUtime=1.32
/proc/6595/stat : 6595 (VALCSP) R 6593 6595 5241 0 -1 4194304 985 0 0 0 132 0 0 0 25 0 1 0 159177230 5017600 963 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134524602 0 0 4096 0 0 0 0 17 1 0 0
/proc/6595/statm: 1225 963 65 8 0 897 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 4900

[startup+2.98106 s]
/proc/loadavg: 2.05 2.01 2.00 3/98 6596
/proc/meminfo: memFree=1326328/2055920 swapFree=4178332/4192956
[pid=6595] ppid=6593 vsize=4900 CPUtime=2.96
/proc/6595/stat : 6595 (VALCSP) R 6593 6595 5241 0 -1 4194304 985 0 0 0 296 0 0 0 25 0 1 0 159177230 5017600 963 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134524917 0 0 4096 0 0 0 0 17 1 0 0
/proc/6595/statm: 1225 963 65 8 0 897 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 4900

[startup+6.26051 s]
/proc/loadavg: 2.05 2.01 2.00 3/98 6596
/proc/meminfo: memFree=1326328/2055920 swapFree=4178332/4192956
[pid=6595] ppid=6593 vsize=4900 CPUtime=6.22
/proc/6595/stat : 6595 (VALCSP) R 6593 6595 5241 0 -1 4194304 985 0 0 0 622 0 0 0 25 0 1 0 159177230 5017600 963 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134524555 0 0 4096 0 0 0 0 17 1 0 0
/proc/6595/statm: 1225 963 65 8 0 897 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 4900

[startup+12.7214 s]
/proc/loadavg: 2.04 2.01 2.00 3/98 6596
/proc/meminfo: memFree=1326328/2055920 swapFree=4178332/4192956
[pid=6595] ppid=6593 vsize=4900 CPUtime=12.66
/proc/6595/stat : 6595 (VALCSP) R 6593 6595 5241 0 -1 4194304 985 0 0 0 1266 0 0 0 25 0 1 0 159177230 5017600 963 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134524683 0 0 4096 0 0 0 0 17 1 0 0
/proc/6595/statm: 1225 963 65 8 0 897 0
Current children cumulated CPU time (s) 12.66
Current children cumulated vsize (KiB) 4900

[startup+25.5331 s]
/proc/loadavg: 2.03 2.01 2.00 3/98 6596
/proc/meminfo: memFree=1326328/2055920 swapFree=4178332/4192956
[pid=6595] ppid=6593 vsize=4900 CPUtime=25.42
/proc/6595/stat : 6595 (VALCSP) R 6593 6595 5241 0 -1 4194304 985 0 0 0 2542 0 0 0 25 0 1 0 159177230 5017600 963 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134524739 0 0 4096 0 0 0 0 17 1 0 0
/proc/6595/statm: 1225 963 65 8 0 897 0
Current children cumulated CPU time (s) 25.42
Current children cumulated vsize (KiB) 4900

[startup+51.1706 s]
/proc/loadavg: 2.02 2.01 2.00 3/98 6596
/proc/meminfo: memFree=1326392/2055920 swapFree=4178332/4192956
[pid=6595] ppid=6593 vsize=4900 CPUtime=50.95
/proc/6595/stat : 6595 (VALCSP) R 6593 6595 5241 0 -1 4194304 985 0 0 0 5095 0 0 0 25 0 1 0 159177230 5017600 963 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134524749 0 0 4096 0 0 0 0 17 1 0 0
/proc/6595/statm: 1225 963 65 8 0 897 0
Current children cumulated CPU time (s) 50.95
Current children cumulated vsize (KiB) 4900

[startup+102.433 s]
/proc/loadavg: 2.01 2.00 2.00 3/98 6596
/proc/meminfo: memFree=1326392/2055920 swapFree=4178332/4192956
[pid=6595] ppid=6593 vsize=4900 CPUtime=102.02
/proc/6595/stat : 6595 (VALCSP) R 6593 6595 5241 0 -1 4194304 985 0 0 0 10202 0 0 0 25 0 1 0 159177230 5017600 963 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134524686 0 0 4096 0 0 0 0 17 1 0 0
/proc/6595/statm: 1225 963 65 8 0 897 0
Current children cumulated CPU time (s) 102.02
Current children cumulated vsize (KiB) 4900

Child status: 0
Real time (s): 142.257
CPU time (s): 141.697
CPU user time (s): 141.684
CPU system time (s): 0.012998
CPU usage (%): 99.6064
Max. virtual memory (cumulated for all children) (KiB): 4900

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 141.684
system time used= 0.012998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1015
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= 4458

runsolver used 0.134979 s user time and 0.380942 s system time

The end

Launcher Data (download as text)

Begin job on node10 on Sat Jan  6 18:23:41 UTC 2007


IDJOB= 194913
IDBENCH= 3239
FILE ID= node10/194913-1168107821

PBS_JOBID= 3477042

Free space on /tmp= 66356 MiB

BENCH NAME= HOME/pub/bench/CPAI06/random/rand-2-50-23/rand-2-50-23-587-230-22_ext.xml
COMMAND LINE= /tmp/evaluation/194913-1168107821/VALCSP /tmp/evaluation/194913-1168107821/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node10/watcher-194913-1168107821 -o ROOT/results/node10/solver-194913-1168107821 -C 1800 -M 900  /tmp/evaluation/194913-1168107821/VALCSP /tmp/evaluation/194913-1168107821/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  8562e9e8a5ace187915608298ca5a4f7

RANDOM SEED= 925843625

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		: 3000.232
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		: 3000.232
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:       1330392 kB
Buffers:         52004 kB
Cached:         343676 kB
SwapCached:       2120 kB
Active:         333876 kB
Inactive:       301732 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1330392 kB
SwapTotal:     4192956 kB
SwapFree:      4178332 kB
Dirty:             492 kB
Writeback:           0 kB
Mapped:         259772 kB
Slab:            74204 kB
Committed_AS:  4447904 kB
PageTables:       2660 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= 66356 MiB



End job on node10 on Sat Jan  6 18:26:03 UTC 2007