Trace number 225981

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 15.1847 15.2892

DiagnosticValue
CHECKS372413000
NODES3627

General information on the benchmark

Nametightness/tightness0.9/
rand-2-40-180-84-900-47_ext.xml
MD5SUM7ffc72f9e0beeed37d123dab57de4530
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 benchmark2.15367
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)

15.28	s SATISFIABLE
15.28	v 143 137 2 97 9 12 109 12 133 168 98 102 163 72 178 95 2 179 142 108 137 101 42 37 8 164 32 13 34 6 31 20 97 131 169 149 26 50 1 135 
15.28	d CHECKS 3.72413e+08
15.28	d NODES 3627
15.28

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/node21/watcher-225981-1168274120 -o ROOT/results/node21/solver-225981-1168274120 -C 1800 -M 900 /tmp/evaluation/225981-1168274120/VALCSP /tmp/evaluation/225981-1168274120/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: 0.94 1.06 1.31 4/81 25305
/proc/meminfo: memFree=851472/2055920 swapFree=4156316/4192956
[pid=25304] ppid=25302 vsize=1600 CPUtime=0
/proc/25304/stat : 25304 (VALCSP) R 25302 25304 25245 0 -1 4194304 147 0 0 0 0 0 0 0 18 0 1 0 175806563 1638400 125 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 8899827 0 0 4096 0 0 0 0 17 1 0 0
/proc/25304/statm: 400 125 62 8 0 72 0

[startup+0.10774 s]
/proc/loadavg: 0.94 1.06 1.31 4/81 25305
/proc/meminfo: memFree=851472/2055920 swapFree=4156316/4192956
[pid=25304] ppid=25302 vsize=1600 CPUtime=0.1
/proc/25304/stat : 25304 (VALCSP) R 25302 25304 25245 0 -1 4194304 152 0 0 0 10 0 0 0 18 0 1 0 175806563 1638400 130 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 8897660 0 0 4096 0 0 0 0 17 1 0 0
/proc/25304/statm: 400 130 62 8 0 72 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1600

[startup+0.516817 s]
/proc/loadavg: 0.94 1.06 1.31 4/81 25305
/proc/meminfo: memFree=851472/2055920 swapFree=4156316/4192956
[pid=25304] ppid=25302 vsize=1996 CPUtime=0.5
/proc/25304/stat : 25304 (VALCSP) R 25302 25304 25245 0 -1 4194304 257 0 0 0 50 0 0 0 22 0 1 0 175806563 2043904 235 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 8899767 0 0 4096 0 0 0 0 17 0 0 0
/proc/25304/statm: 499 235 62 8 0 171 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 1996

[startup+1.33997 s]
/proc/loadavg: 0.94 1.06 1.31 3/94 25366
/proc/meminfo: memFree=790944/2055920 swapFree=4156316/4192956
[pid=25304] ppid=25302 vsize=2796 CPUtime=1.32
/proc/25304/stat : 25304 (VALCSP) R 25302 25304 25245 0 -1 4194304 445 0 0 0 132 0 0 0 25 0 1 0 175806563 2863104 423 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 8899815 0 0 4096 0 0 0 0 17 0 0 0
/proc/25304/statm: 699 423 62 8 0 371 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 2796

[startup+2.97728 s]
/proc/loadavg: 0.94 1.06 1.31 3/94 25366
/proc/meminfo: memFree=759840/2055920 swapFree=4156316/4192956
[pid=25304] ppid=25302 vsize=4396 CPUtime=2.95
/proc/25304/stat : 25304 (VALCSP) R 25302 25304 25245 0 -1 4194304 842 0 0 0 295 0 0 0 25 0 1 0 175806563 4501504 820 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 8899767 0 0 4096 0 0 0 0 17 0 0 0
/proc/25304/statm: 1099 820 62 8 0 771 0
Current children cumulated CPU time (s) 2.95
Current children cumulated vsize (KiB) 4396

[startup+6.2589 s]
/proc/loadavg: 1.10 1.09 1.32 3/94 25366
/proc/meminfo: memFree=736736/2055920 swapFree=4156316/4192956
[pid=25304] ppid=25302 vsize=7432 CPUtime=6.22
/proc/25304/stat : 25304 (VALCSP) R 25302 25304 25245 0 -1 4194304 1613 0 0 0 622 0 0 0 25 0 1 0 175806563 7610368 1591 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 8897625 0 0 4096 0 0 0 0 17 0 0 0
/proc/25304/statm: 1858 1591 62 8 0 1530 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 7432

[startup+12.7201 s]
/proc/loadavg: 1.26 1.12 1.32 3/94 25366
/proc/meminfo: memFree=717032/2055920 swapFree=4156316/4192956
[pid=25304] ppid=25302 vsize=21440 CPUtime=12.66
/proc/25304/stat : 25304 (VALCSP) R 25302 25304 25245 0 -1 4194304 5099 0 0 0 1264 2 0 0 25 0 1 0 175806563 21954560 5077 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134524793 0 0 4096 0 0 0 0 17 0 0 0
/proc/25304/statm: 5360 5077 65 8 0 5032 0
Current children cumulated CPU time (s) 12.66
Current children cumulated vsize (KiB) 21440

Child status: 0
Real time (s): 15.2892
CPU time (s): 15.1847
CPU user time (s): 15.1557
CPU system time (s): 0.028995
CPU usage (%): 99.3165
Max. virtual memory (cumulated for all children) (KiB): 21440

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 15.1557
system time used= 0.028995
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5129
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= 256

runsolver used 0.012998 s user time and 0.046992 s system time

The end

Launcher Data (download as text)

Begin job on node21 on Mon Jan  8 16:35:20 UTC 2007


IDJOB= 225981
IDBENCH= 5917
FILE ID= node21/225981-1168274120

PBS_JOBID= 3483267

Free space on /tmp= 66563 MiB

BENCH NAME= HOME/pub/bench/CPAI06/tightness/tightness0.9/rand-2-40-180-84-900-47_ext.xml
COMMAND LINE= /tmp/evaluation/225981-1168274120/VALCSP /tmp/evaluation/225981-1168274120/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node21/watcher-225981-1168274120 -o ROOT/results/node21/solver-225981-1168274120 -C 1800 -M 900  /tmp/evaluation/225981-1168274120/VALCSP /tmp/evaluation/225981-1168274120/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  7ffc72f9e0beeed37d123dab57de4530

RANDOM SEED= 875607126

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:        851888 kB
Buffers:         13580 kB
Cached:        1110060 kB
SwapCached:       2304 kB
Active:         597684 kB
Inactive:       554388 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        851888 kB
SwapTotal:     4192956 kB
SwapFree:      4156316 kB
Dirty:            2168 kB
Writeback:           0 kB
Mapped:          37520 kB
Slab:            37140 kB
Committed_AS:  3606868 kB
PageTables:       1988 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= 66550 MiB



End job on node21 on Mon Jan  8 16:35:36 UTC 2007