Trace number 202957

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
Mistral 2006-12-04SAT 8.71567 8.78463

General information on the benchmark

Namerandom/rand-2-40-19/
rand-2-40-19-443-230-39_ext.xml
MD5SUMd9744dc6c8fd34dff264dd0ff999bfc0
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 benchmark8.71567
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables40
Number of constraints351
Maximum constraint arity2
Maximum domain size19
Number of constraints which are defined in extension351
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

0.01	c 
0.01	c Parsing xml file
0.01	c 	domains...............    0
0.01	c 	variables.............    0
0.01	c 	relations............. 0.06
0.07	c 	constraints........... 0.02
0.09	c Allocating memory
0.09	c 
0.09	c time limit = -1
0.09	c heuristic = dom/wdeg
0.09	c restart policy = No restart
0.09	c 
0.09	c Solving
0.09	c
8.78	s SATISFIABLE
8.78	v 14 15 13 5 2 3 3 1 2 17 0 9 10 17 11 1 7 4 5 18 16 15 2 16 14 16 3 5 7 6 18 7 18 6 10 0 9 8 1 2
8.78	d          SAT     28815 BTS       8.6 s

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-202957-1168155263 -o ROOT/results/node76/solver-202957-1168155263 -C 1800 -M 900 /tmp/evaluation/202957-1168155263/mistral/bin/solver /tmp/evaluation/202957-1168155263/unknown.xml -v 1 

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: 0.78 0.95 1.07 3/78 23352
/proc/meminfo: memFree=1389976/2055888 swapFree=4095388/4096564
[pid=23351] ppid=23349 vsize=18544 CPUtime=0
/proc/23351/stat : 23351 (runsolver) R 23349 23351 22861 0 -1 4194368 15 0 0 0 0 0 0 0 21 0 1 0 163923460 18989056 278 18446744073709551615 4194304 4267372 548682069056 18446744073709551615 206843737111 0 0 4096 24578 0 0 0 17 1 0 0
/proc/23351/statm: 4636 278 243 17 0 2626 0

[startup+0.102562 s]
/proc/loadavg: 0.78 0.95 1.07 3/78 23352
/proc/meminfo: memFree=1389976/2055888 swapFree=4095388/4096564
[pid=23351] ppid=23349 vsize=7844 CPUtime=0.09
/proc/23351/stat : 23351 (solver) R 23349 23351 22861 0 -1 4194304 1047 0 0 0 9 0 0 0 21 0 1 0 163923460 8032256 1016 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134639628 0 0 4096 0 0 0 0 17 0 0 0
/proc/23351/statm: 1961 1016 709 92 0 304 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7844

[startup+0.510638 s]
/proc/loadavg: 0.78 0.95 1.07 3/78 23352
/proc/meminfo: memFree=1389976/2055888 swapFree=4095388/4096564
[pid=23351] ppid=23349 vsize=7844 CPUtime=0.49
/proc/23351/stat : 23351 (solver) R 23349 23351 22861 0 -1 4194304 1047 0 0 0 49 0 0 0 25 0 1 0 163923460 8032256 1016 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134637395 0 0 4096 0 0 0 0 17 0 0 0
/proc/23351/statm: 1961 1016 709 92 0 304 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 7844

[startup+1.3308 s]
/proc/loadavg: 0.78 0.95 1.07 3/78 23352
/proc/meminfo: memFree=1388696/2055888 swapFree=4095388/4096564
[pid=23351] ppid=23349 vsize=7844 CPUtime=1.31
/proc/23351/stat : 23351 (solver) R 23349 23351 22861 0 -1 4194304 1047 0 0 0 131 0 0 0 25 0 1 0 163923460 8032256 1016 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134637750 0 0 4096 0 0 0 0 17 0 0 0
/proc/23351/statm: 1961 1016 709 92 0 304 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 7844

[startup+2.96712 s]
/proc/loadavg: 0.78 0.95 1.07 3/78 23352
/proc/meminfo: memFree=1388696/2055888 swapFree=4095388/4096564
[pid=23351] ppid=23349 vsize=7844 CPUtime=2.93
/proc/23351/stat : 23351 (solver) R 23349 23351 22861 0 -1 4194304 1047 0 0 0 293 0 0 0 25 0 1 0 163923460 8032256 1016 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134637367 0 0 4096 0 0 0 0 17 0 0 0
/proc/23351/statm: 1961 1016 709 92 0 304 0
Current children cumulated CPU time (s) 2.93
Current children cumulated vsize (KiB) 7844

[startup+6.24676 s]
/proc/loadavg: 0.88 0.97 1.08 3/78 23352
/proc/meminfo: memFree=1388632/2055888 swapFree=4095388/4096564
[pid=23351] ppid=23349 vsize=7844 CPUtime=6.18
/proc/23351/stat : 23351 (solver) R 23349 23351 22861 0 -1 4194304 1047 0 0 0 618 0 0 0 25 0 1 0 163923460 8032256 1016 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134790402 0 0 4096 0 0 0 0 17 0 0 0
/proc/23351/statm: 1961 1016 709 92 0 304 0
Current children cumulated CPU time (s) 6.18
Current children cumulated vsize (KiB) 7844

Child status: 0
Real time (s): 8.78463
CPU time (s): 8.71567
CPU user time (s): 8.70568
CPU system time (s): 0.009998
CPU usage (%): 99.2151
Max. virtual memory (cumulated for all children) (KiB): 7844

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 8.70568
system time used= 0.009998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1057
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= 12
involuntary context switches= 256

runsolver used 0.009998 s user time and 0.027995 s system time

The end

Launcher Data (download as text)

Begin job on node76 on Sun Jan  7 07:34:24 UTC 2007


IDJOB= 202957
IDBENCH= 3900
FILE ID= node76/202957-1168155263

PBS_JOBID= 3478518

Free space on /tmp= 66642 MiB

BENCH NAME= HOME/pub/bench/CPAI06/random/rand-2-40-19/rand-2-40-19-443-230-39_ext.xml
COMMAND LINE= /tmp/evaluation/202957-1168155263/mistral/bin/solver /tmp/evaluation/202957-1168155263/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node76/watcher-202957-1168155263 -o ROOT/results/node76/solver-202957-1168155263 -C 1800 -M 900  /tmp/evaluation/202957-1168155263/mistral/bin/solver /tmp/evaluation/202957-1168155263/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  d9744dc6c8fd34dff264dd0ff999bfc0

RANDOM SEED= 574823719

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:       1390648 kB
Buffers:         57792 kB
Cached:         529204 kB
SwapCached:        456 kB
Active:         313852 kB
Inactive:       296744 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055888 kB
LowFree:       1390648 kB
SwapTotal:     4096564 kB
SwapFree:      4095388 kB
Dirty:            6588 kB
Writeback:           0 kB
Mapped:          33764 kB
Slab:            40396 kB
Committed_AS:  6090620 kB
PageTables:       1740 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= 66642 MiB



End job on node76 on Sun Jan  7 07:34:32 UTC 2007