Trace number 2082480

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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 1.545SAT 10.2324 10.2394

DiagnosticValue
ASSIGNMENTS43721
CHECKS2075390
NODES43721

General information on the benchmark

Namecsp/rand-8-20-5/
normalized-rand-8-20-5-18-800-17_ext.xml
MD5SUM20f6936a9f409b14eec766fe1691fa7b
Bench CategoryN-ARY-EXT (n-ary constraints in extension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark10.2324
Satisfiable
(Un)Satisfiability was proved
Number of variables20
Number of constraints18
Maximum constraint arity8
Maximum domain size5
Number of constraints which are defined in extension18
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data 

0.00/0.00	c mistral version 1.545
10.08/10.14	s SATISFIABLE
10.08/10.14	v 3 0 0 3 2 1 1 3 0 4 4 1 2 4 4 4 3 2 4 0
10.08/10.14	d CHECKS 2075392
10.08/10.14	d ASSIGNMENTS 43721
10.08/10.14	d NODES 43721 BACKTRACKS 43713 FAILURES 43713 RUNTIME 7.48 TOTALTIME 10.13 NODES/s 5845.05 CHECKS/s 277459

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2082480-1247375234/watcher-2082480-1247375234 -o /tmp/evaluation-result-2082480-1247375234/solver-2082480-1247375234 -C 1800 -W 2000 -M 900 /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2082480-1247375234.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2000 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


[startup+0 s]
/proc/loadavg: 1.93 1.99 1.99 4/80 24041
/proc/meminfo: memFree=1337432/2055920 swapFree=4192812/4192956
[pid=24041] ppid=24039 vsize=4804 CPUtime=0
/proc/24041/stat : 24041 (ld-linux.so.2) R 24039 24041 22456 0 -1 4194304 181 0 0 0 0 0 0 0 18 0 1 0 24590684 4919296 162 996147200 1448431616 1448550632 4294956208 18446744073709551615 1448480482 0 0 4096 0 0 0 0 17 0 0 0
/proc/24041/statm: 1201 163 138 29 0 16 0

[startup+0.062578 s]
/proc/loadavg: 1.93 1.99 1.99 4/80 24041
/proc/meminfo: memFree=1337432/2055920 swapFree=4192812/4192956
[pid=24041] ppid=24039 vsize=6436 CPUtime=0.05
/proc/24041/stat : 24041 (ld-linux.so.2) R 24039 24041 22456 0 -1 4194304 765 0 0 0 5 0 0 0 18 0 1 0 24590684 6590464 744 996147200 1448431616 1448550632 4294956208 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 0 0 0
/proc/24041/statm: 1609 744 358 29 0 424 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 6436

[startup+0.101586 s]
/proc/loadavg: 1.93 1.99 1.99 4/80 24041
/proc/meminfo: memFree=1337432/2055920 swapFree=4192812/4192956
[pid=24041] ppid=24039 vsize=7360 CPUtime=0.09
/proc/24041/stat : 24041 (ld-linux.so.2) R 24039 24041 22456 0 -1 4194304 1004 0 0 0 9 0 0 0 18 0 1 0 24590684 7536640 983 996147200 1448431616 1448550632 4294956208 18446744073709551615 134661446 0 0 4096 0 0 0 0 17 0 0 0
/proc/24041/statm: 1840 984 358 29 0 655 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7360

[startup+0.301628 s]
/proc/loadavg: 1.93 1.99 1.99 4/80 24041
/proc/meminfo: memFree=1337432/2055920 swapFree=4192812/4192956
[pid=24041] ppid=24039 vsize=12332 CPUtime=0.29
/proc/24041/stat : 24041 (ld-linux.so.2) R 24039 24041 22456 0 -1 4194304 2230 0 0 0 28 1 0 0 19 0 1 0 24590684 12627968 2209 996147200 1448431616 1448550632 4294956208 18446744073709551615 4157381179 0 0 4096 0 0 0 0 17 0 0 0
/proc/24041/statm: 3116 2210 358 29 0 1931 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12332

[startup+0.701714 s]
/proc/loadavg: 1.93 1.99 1.99 4/80 24041
/proc/meminfo: memFree=1337432/2055920 swapFree=4192812/4192956
[pid=24041] ppid=24039 vsize=22232 CPUtime=0.69
/proc/24041/stat : 24041 (ld-linux.so.2) R 24039 24041 22456 0 -1 4194304 4686 0 0 0 66 3 0 0 23 0 1 0 24590684 22765568 4665 996147200 1448431616 1448550632 4294956208 18446744073709551615 4157381179 0 0 4096 0 0 0 0 17 0 0 0
/proc/24041/statm: 5558 4666 358 29 0 4373 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 22232

[startup+1.50189 s]
/proc/loadavg: 1.93 1.99 1.99 3/81 24042
/proc/meminfo: memFree=1312208/2055920 swapFree=4192812/4192956
[pid=24041] ppid=24039 vsize=41592 CPUtime=1.48
/proc/24041/stat : 24041 (ld-linux.so.2) R 24039 24041 22456 0 -1 4194304 9599 0 0 0 141 7 0 0 25 0 1 0 24590684 42590208 9578 996147200 1448431616 1448550632 4294956208 18446744073709551615 4157381179 0 0 4096 0 0 0 0 17 0 0 0
/proc/24041/statm: 10398 9578 358 29 0 9213 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 41592

[startup+3.10123 s]
/proc/loadavg: 1.93 1.99 1.99 3/81 24042
/proc/meminfo: memFree=1285776/2055920 swapFree=4192812/4192956
[pid=24041] ppid=24039 vsize=66308 CPUtime=3.09
/proc/24041/stat : 24041 (ld-linux.so.2) R 24039 24041 22456 0 -1 4194304 15825 0 0 0 297 12 0 0 25 0 1 0 24590684 67899392 15804 996147200 1448431616 1448550632 4294956208 18446744073709551615 135264051 0 0 4096 0 0 0 0 17 0 0 0
/proc/24041/statm: 16577 15804 412 29 0 15392 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 66308

[startup+6.30192 s]
/proc/loadavg: 1.93 1.99 1.99 3/81 24042
/proc/meminfo: memFree=1275792/2055920 swapFree=4192812/4192956
[pid=24041] ppid=24039 vsize=66308 CPUtime=6.29
/proc/24041/stat : 24041 (ld-linux.so.2) R 24039 24041 22456 0 -1 4194304 15825 0 0 0 617 12 0 0 25 0 1 0 24590684 67899392 15804 996147200 1448431616 1448550632 4294956208 18446744073709551615 135265328 0 0 4096 0 0 0 0 17 0 0 0
/proc/24041/statm: 16577 15804 412 29 0 15392 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 66308

Solver just ended. Dumping a history of the last processes samples

[startup+7.90126 s]
/proc/loadavg: 1.94 1.99 1.99 3/81 24042
/proc/meminfo: memFree=1275792/2055920 swapFree=4192812/4192956
[pid=24041] ppid=24039 vsize=66308 CPUtime=7.88
/proc/24041/stat : 24041 (ld-linux.so.2) R 24039 24041 22456 0 -1 4194304 15825 0 0 0 776 12 0 0 25 0 1 0 24590684 67899392 15804 996147200 1448431616 1448550632 4294956208 18446744073709551615 135264057 0 0 4096 0 0 0 0 17 0 0 0
/proc/24041/statm: 16577 15804 412 29 0 15392 0
Current children cumulated CPU time (s) 7.88
Current children cumulated vsize (KiB) 66308

[startup+9.50261 s]
/proc/loadavg: 1.94 1.99 1.99 3/81 24042
/proc/meminfo: memFree=1275792/2055920 swapFree=4192812/4192956
[pid=24041] ppid=24039 vsize=66308 CPUtime=9.48
/proc/24041/stat : 24041 (ld-linux.so.2) R 24039 24041 22456 0 -1 4194304 15825 0 0 0 936 12 0 0 25 0 1 0 24590684 67899392 15804 996147200 1448431616 1448550632 4294956208 18446744073709551615 134860556 0 0 4096 0 0 0 0 17 0 0 0
/proc/24041/statm: 16577 15804 412 29 0 15392 0
Current children cumulated CPU time (s) 9.48
Current children cumulated vsize (KiB) 66308

[startup+9.90675 s]
/proc/loadavg: 1.94 1.99 1.99 3/81 24042
/proc/meminfo: memFree=1275792/2055920 swapFree=4192812/4192956
[pid=24041] ppid=24039 vsize=66308 CPUtime=9.89
/proc/24041/stat : 24041 (ld-linux.so.2) R 24039 24041 22456 0 -1 4194304 15825 0 0 0 977 12 0 0 25 0 1 0 24590684 67899392 15804 996147200 1448431616 1448550632 4294956208 18446744073709551615 135277679 0 0 4096 0 0 0 0 17 0 0 0
/proc/24041/statm: 16577 15804 412 29 0 15392 0
Current children cumulated CPU time (s) 9.89
Current children cumulated vsize (KiB) 66308

[startup+10.1017 s]
/proc/loadavg: 1.94 1.99 1.99 3/81 24042
/proc/meminfo: memFree=1275792/2055920 swapFree=4192812/4192956
[pid=24041] ppid=24039 vsize=66308 CPUtime=10.08
/proc/24041/stat : 24041 (ld-linux.so.2) R 24039 24041 22456 0 -1 4194304 15825 0 0 0 996 12 0 0 25 0 1 0 24590684 67899392 15804 996147200 1448431616 1448550632 4294956208 18446744073709551615 135264051 0 0 4096 0 0 0 0 17 0 0 0
/proc/24041/statm: 16577 15804 412 29 0 15392 0
Current children cumulated CPU time (s) 10.08
Current children cumulated vsize (KiB) 66308

[startup+10.2018 s]
/proc/loadavg: 1.94 1.99 1.99 3/81 24042
/proc/meminfo: memFree=1275792/2055920 swapFree=4192812/4192956
[pid=24041] ppid=24039 vsize=62624 CPUtime=10.18
/proc/24041/stat : 24041 (ld-linux.so.2) R 24039 24041 22456 0 -1 4194304 15863 0 0 0 1006 12 0 0 25 0 1 0 24590684 64126976 14920 996147200 1448431616 1448550632 4294956208 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 0 0 0
/proc/24041/statm: 15656 14920 449 29 0 14471 0
Current children cumulated CPU time (s) 10.18
Current children cumulated vsize (KiB) 62624

Child status: 0
Real time (s): 10.2394
CPU time (s): 10.2324
CPU user time (s): 10.0925
CPU system time (s): 0.139978
CPU usage (%): 99.932
Max. virtual memory (cumulated for all children) (KiB): 66308

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 10.0925
system time used= 0.139978
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15864
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= 24
involuntary context switches= 43

runsolver used 0.018997 second user time and 0.036994 second system time

The end

Launcher Data 

Begin job on node10 at 2009-07-12 07:07:16
IDJOB=2082480
IDBENCH=57588
IDSOLVER=769
FILE ID=node10/2082480-1247375234
PBS_JOBID= 9507132
Free space on /tmp= 66396 MiB

SOLVER NAME= Mistral 1.545
BENCH NAME= CPAI08/csp/rand-8-20-5/normalized-rand-8-20-5-18-800-17_ext.xml
COMMAND LINE= /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2082480-1247375234/watcher-2082480-1247375234 -o /tmp/evaluation-result-2082480-1247375234/solver-2082480-1247375234 -C 1800 -W 2000 -M 900  /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2082480-1247375234.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 20f6936a9f409b14eec766fe1691fa7b
RANDOM SEED=459517341

node10.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.279
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		: 3000.279
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:       1337848 kB
Buffers:         64748 kB
Cached:         299256 kB
SwapCached:          0 kB
Active:         455668 kB
Inactive:       183148 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1337848 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:           23144 kB
Writeback:           0 kB
Mapped:         292672 kB
Slab:            63972 kB
Committed_AS:   909164 kB
PageTables:       2260 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= 66396 MiB
End job on node10 at 2009-07-12 07:07:27