Trace number 269024

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 10.4004 10.4056

DiagnosticValue
CHECKS43533700
NODES805

General information on the benchmark

Nametightness/tightness0.9/
rand-2-40-180-84-900-37_ext.xml
MD5SUM75d3efe5e6cc743c89a5f4ac9d02a8b6
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 benchmark1.18182
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)

10.40	s SATISFIABLE
10.40	v 97 61 164 95 150 34 39 13 145 119 154 90 51 68 98 93 20 144 75 123 171 7 106 125 24 3 98 46 80 163 85 20 5 157 46 119 44 142 6 122 
10.40	d CHECKS 4.35337e+07
10.40	d NODES 805

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/node76/watcher-269024-1168980136 -o ROOT/results/node76/solver-269024-1168980136 -C 1800 -M 900 /tmp/evaluation/269024-1168980136/VALCSP /tmp/evaluation/269024-1168980136/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: 0.10 0.38 0.65 5/75 18341
/proc/meminfo: memFree=1315848/2055888 swapFree=4095388/4096564
[pid=18340] ppid=18336 vsize=1604 CPUtime=0
/proc/18340/stat : 18340 (VALCSP) R 18336 18340 18077 0 -1 4194304 150 0 0 0 0 0 0 0 19 0 1 0 246411780 1642496 128 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 5277497 0 0 4096 0 0 0 0 17 1 0 0
/proc/18340/statm: 401 128 64 8 0 72 0

[startup+0.104244 s]
/proc/loadavg: 0.10 0.38 0.65 5/75 18341
/proc/meminfo: memFree=1315848/2055888 swapFree=4095388/4096564
[pid=18340] ppid=18336 vsize=1604 CPUtime=0.1
/proc/18340/stat : 18340 (VALCSP) R 18336 18340 18077 0 -1 4194304 154 0 0 0 10 0 0 0 20 0 1 0 246411780 1642496 132 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 5279628 0 0 4096 0 0 0 0 17 1 0 0
/proc/18340/statm: 401 132 64 8 0 72 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1604

[startup+0.51232 s]
/proc/loadavg: 0.10 0.38 0.65 5/75 18341
/proc/meminfo: memFree=1315848/2055888 swapFree=4095388/4096564
[pid=18340] ppid=18336 vsize=2000 CPUtime=0.51
/proc/18340/stat : 18340 (VALCSP) R 18336 18340 18077 0 -1 4194304 260 0 0 0 51 0 0 0 24 0 1 0 246411780 2048000 238 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 5279628 0 0 4096 0 0 0 0 17 1 0 0
/proc/18340/statm: 500 238 64 8 0 171 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 2000

[startup+1.33248 s]
/proc/loadavg: 0.10 0.38 0.65 3/78 18344
/proc/meminfo: memFree=1313008/2055888 swapFree=4095388/4096564
[pid=18340] ppid=18336 vsize=2800 CPUtime=1.32
/proc/18340/stat : 18340 (VALCSP) R 18336 18340 18077 0 -1 4194304 449 0 0 0 132 0 0 0 25 0 1 0 246411780 2867200 427 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 5277497 0 0 4096 0 0 0 0 17 1 0 0
/proc/18340/statm: 700 427 64 8 0 371 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 2800

[startup+2.9698 s]
/proc/loadavg: 0.10 0.38 0.65 3/78 18344
/proc/meminfo: memFree=1310832/2055888 swapFree=4095388/4096564
[pid=18340] ppid=18336 vsize=4384 CPUtime=2.96
/proc/18340/stat : 18340 (VALCSP) R 18336 18340 18077 0 -1 4194304 847 0 0 0 296 0 0 0 25 0 1 0 246411780 4489216 825 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 5279649 0 0 4096 0 0 0 0 17 1 0 0
/proc/18340/statm: 1096 825 64 8 0 767 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 4384

[startup+6.25044 s]
/proc/loadavg: 0.25 0.41 0.66 3/78 18344
/proc/meminfo: memFree=1304432/2055888 swapFree=4095388/4096564
[pid=18340] ppid=18336 vsize=7432 CPUtime=6.24
/proc/18340/stat : 18340 (VALCSP) R 18336 18340 18077 0 -1 4194304 1600 0 0 0 624 0 0 0 25 0 1 0 246411780 7610368 1578 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 5279621 0 0 4096 0 0 0 0 17 1 0 0
/proc/18340/statm: 1858 1578 64 8 0 1529 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 7432

Child status: 0
Real time (s): 10.4056
CPU time (s): 10.4004
CPU user time (s): 10.3714
CPU system time (s): 0.028995
CPU usage (%): 99.9504
Max. virtual memory (cumulated for all children) (KiB): 21464

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 10.3714
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= 5141
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= 35

runsolver used 0.008998 s user time and 0.033994 s system time

The end

Launcher Data (download as text)

Begin job on node76 on Tue Jan 16 20:42:22 UTC 2007


IDJOB= 269024
IDBENCH= 5867
IDSOLVER= 90
FILE ID= node76/269024-1168980136

PBS_JOBID= 3566298

Free space on /tmp= 66649 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/tightness/tightness0.9/rand-2-40-180-84-900-37_ext.xml
COMMAND LINE= /tmp/evaluation/269024-1168980136/VALCSP /tmp/evaluation/269024-1168980136/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node76/watcher-269024-1168980136 -o ROOT/results/node76/solver-269024-1168980136 -C 1800 -M 900  /tmp/evaluation/269024-1168980136/VALCSP /tmp/evaluation/269024-1168980136/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  75d3efe5e6cc743c89a5f4ac9d02a8b6

RANDOM SEED= 613675872

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		: 3000.254
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	: 6006.17
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		: 3000.254
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	: 5999.42
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055888 kB
MemFree:       1317104 kB
Buffers:         53252 kB
Cached:         590840 kB
SwapCached:        276 kB
Active:          81188 kB
Inactive:       582888 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055888 kB
LowFree:       1317104 kB
SwapTotal:     4096564 kB
SwapFree:      4095388 kB
Dirty:            3300 kB
Writeback:           0 kB
Mapped:          29328 kB
Slab:            60708 kB
Committed_AS:  7596448 kB
PageTables:       1660 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264388 kB
VmallocChunk: 536606243 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66648 MiB



End job on node76 on Tue Jan 16 20:42:47 UTC 2007