Trace number 2082502

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 13.7199 13.86

DiagnosticValue
ASSIGNMENTS54731
CHECKS2647610
NODES54731

General information on the benchmark

Namecsp/rand-8-20-5/
normalized-rand-8-20-5-18-800-11_ext.xml
MD5SUM9a1e5061af5a11aec5f3135ecda7e6f0
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 benchmark13.7199
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 

0.18/0.22	c mistral version 1.545
13.55/13.76	s SATISFIABLE
13.55/13.76	v 0 2 3 3 2 0 2 0 4 0 4 2 3 0 4 1 1 4 0 1
13.55/13.76	d CHECKS 2647612
13.55/13.76	d ASSIGNMENTS 54731
13.55/13.76	d NODES 54731 BACKTRACKS 54721 FAILURES 54721 RUNTIME 10.89 TOTALTIME 13.62 NODES/s 5025.8 CHECKS/s 243123

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-2082502-1247375269/watcher-2082502-1247375269 -o /tmp/evaluation-result-2082502-1247375269/solver-2082502-1247375269 -C 1800 -W 2000 -M 900 /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2082502-1247375269.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: 1.92 2.00 1.99 4/84 28190
/proc/meminfo: memFree=1676736/2055920 swapFree=4192812/4192956
[pid=28190] ppid=28188 vsize=18576 CPUtime=0
/proc/28190/stat : 28190 (runsolver) R 28188 28190 23465 0 -1 4194368 15 0 0 0 0 0 0 0 19 0 1 0 24590670 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 240577473831 0 2147483391 4096 24578 0 0 0 17 1 0 0
/proc/28190/statm: 4644 284 249 26 0 2626 0

[startup+0.0599299 s]
/proc/loadavg: 1.92 2.00 1.99 4/84 28190
/proc/meminfo: memFree=1676736/2055920 swapFree=4192812/4192956
[pid=28190] ppid=28188 vsize=6308 CPUtime=0.04
/proc/28190/stat : 28190 (ld-linux.so.2) R 28188 28190 23465 0 -1 4194304 706 0 0 0 4 0 0 0 18 0 1 0 24590670 6459392 685 996147200 1448431616 1448550632 4294956208 18446744073709551615 134661463 0 0 4096 0 0 0 0 17 1 0 0
/proc/28190/statm: 1577 685 358 29 0 392 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 6308

[startup+0.102931 s]
/proc/loadavg: 1.92 2.00 1.99 4/84 28190
/proc/meminfo: memFree=1676736/2055920 swapFree=4192812/4192956
[pid=28190] ppid=28188 vsize=7100 CPUtime=0.09
/proc/28190/stat : 28190 (ld-linux.so.2) R 28188 28190 23465 0 -1 4194304 957 0 0 0 9 0 0 0 18 0 1 0 24590670 7270400 936 996147200 1448431616 1448550632 4294956208 18446744073709551615 134525269 0 0 4096 0 0 0 0 17 1 0 0
/proc/28190/statm: 1775 936 358 29 0 590 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7100

[startup+0.302948 s]
/proc/loadavg: 1.92 2.00 1.99 4/84 28190
/proc/meminfo: memFree=1676736/2055920 swapFree=4192812/4192956
[pid=28190] ppid=28188 vsize=11940 CPUtime=0.28
/proc/28190/stat : 28190 (ld-linux.so.2) R 28188 28190 23465 0 -1 4194304 2114 0 0 0 27 1 0 0 19 0 1 0 24590670 12226560 2093 996147200 1448431616 1448550632 4294956208 18446744073709551615 134525237 0 0 4096 0 0 0 0 17 1 0 0
/proc/28190/statm: 2985 2093 358 29 0 1800 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 11940

[startup+0.701986 s]
/proc/loadavg: 1.92 2.00 1.99 4/84 28190
/proc/meminfo: memFree=1676736/2055920 swapFree=4192812/4192956
[pid=28190] ppid=28188 vsize=21264 CPUtime=0.68
/proc/28190/stat : 28190 (ld-linux.so.2) R 28188 28190 23465 0 -1 4194304 4501 0 0 0 65 3 0 0 23 0 1 0 24590670 21774336 4480 996147200 1448431616 1448550632 4294956208 18446744073709551615 134671516 0 0 4096 0 0 0 0 17 1 0 0
/proc/28190/statm: 5316 4480 358 29 0 4131 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 21264

[startup+1.50106 s]
/proc/loadavg: 1.92 2.00 1.99 3/85 28191
/proc/meminfo: memFree=1652920/2055920 swapFree=4192812/4192956
[pid=28190] ppid=28188 vsize=40272 CPUtime=1.46
/proc/28190/stat : 28190 (ld-linux.so.2) R 28188 28190 23465 0 -1 4194304 9240 0 0 0 141 5 0 0 25 0 1 0 24590670 41238528 9219 996147200 1448431616 1448550632 4294956208 18446744073709551615 134671439 0 0 4096 0 0 0 0 17 1 0 0
/proc/28190/statm: 10068 9219 358 29 0 8883 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 40272

[startup+3.10119 s]
/proc/loadavg: 1.93 2.00 1.99 3/85 28191
/proc/meminfo: memFree=1626552/2055920 swapFree=4192812/4192956
[pid=28190] ppid=28188 vsize=66312 CPUtime=3.05
/proc/28190/stat : 28190 (ld-linux.so.2) R 28188 28190 23465 0 -1 4194304 15826 0 0 0 295 10 0 0 25 0 1 0 24590670 67903488 15805 996147200 1448431616 1448550632 4294956208 18446744073709551615 134834937 0 0 4096 0 0 0 0 17 1 0 0
/proc/28190/statm: 16578 15805 412 29 0 15393 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 66312

[startup+6.30147 s]
/proc/loadavg: 1.93 2.00 1.99 3/85 28191
/proc/meminfo: memFree=1614904/2055920 swapFree=4192812/4192956
[pid=28190] ppid=28188 vsize=66312 CPUtime=6.22
/proc/28190/stat : 28190 (ld-linux.so.2) R 28188 28190 23465 0 -1 4194304 15827 0 0 0 612 10 0 0 25 0 1 0 24590670 67903488 15806 996147200 1448431616 1448550632 4294956208 18446744073709551615 134834943 0 0 4096 0 0 0 0 17 1 0 0
/proc/28190/statm: 16578 15806 412 29 0 15393 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 66312

[startup+12.701 s]
/proc/loadavg: 1.94 2.00 1.99 3/85 28191
/proc/meminfo: memFree=1614968/2055920 swapFree=4192812/4192956
[pid=28190] ppid=28188 vsize=66312 CPUtime=12.56
/proc/28190/stat : 28190 (ld-linux.so.2) R 28188 28190 23465 0 -1 4194304 15827 0 0 0 1246 10 0 0 25 0 1 0 24590670 67903488 15806 996147200 1448431616 1448550632 4294956208 18446744073709551615 134860499 0 0 4096 0 0 0 0 17 1 0 0
/proc/28190/statm: 16578 15806 412 29 0 15393 0
Current children cumulated CPU time (s) 12.56
Current children cumulated vsize (KiB) 66312

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

[startup+13.5011 s]
/proc/loadavg: 1.94 2.00 1.99 3/85 28191
/proc/meminfo: memFree=1615032/2055920 swapFree=4192812/4192956
[pid=28190] ppid=28188 vsize=66312 CPUtime=13.35
/proc/28190/stat : 28190 (ld-linux.so.2) R 28188 28190 23465 0 -1 4194304 15827 0 0 0 1325 10 0 0 25 0 1 0 24590670 67903488 15806 996147200 1448431616 1448550632 4294956208 18446744073709551615 134860449 0 0 4096 0 0 0 0 17 1 0 0
/proc/28190/statm: 16578 15806 412 29 0 15393 0
Current children cumulated CPU time (s) 13.35
Current children cumulated vsize (KiB) 66312

[startup+13.7011 s]
/proc/loadavg: 1.94 2.00 1.99 3/85 28191
/proc/meminfo: memFree=1615032/2055920 swapFree=4192812/4192956
[pid=28190] ppid=28188 vsize=66312 CPUtime=13.55
/proc/28190/stat : 28190 (ld-linux.so.2) R 28188 28190 23465 0 -1 4194304 15827 0 0 0 1345 10 0 0 25 0 1 0 24590670 67903488 15806 996147200 1448431616 1448550632 4294956208 18446744073709551615 134860708 0 0 4096 0 0 0 0 17 1 0 0
/proc/28190/statm: 16578 15806 412 29 0 15393 0
Current children cumulated CPU time (s) 13.55
Current children cumulated vsize (KiB) 66312

[startup+13.8011 s]
/proc/loadavg: 1.94 2.00 1.99 3/85 28191
/proc/meminfo: memFree=1615032/2055920 swapFree=4192812/4192956
[pid=28190] ppid=28188 vsize=64164 CPUtime=13.65
/proc/28190/stat : 28190 (ld-linux.so.2) R 28188 28190 23465 0 -1 4194304 15865 0 0 0 1355 10 0 0 25 0 1 0 24590670 65703936 15306 996147200 1448431616 1448550632 4294956208 18446744073709551615 4157375247 0 0 4096 0 0 0 0 17 1 0 0
/proc/28190/statm: 16041 15306 449 29 0 14856 0
Current children cumulated CPU time (s) 13.65
Current children cumulated vsize (KiB) 64164

Child status: 0
Real time (s): 13.86
CPU time (s): 13.7199
CPU user time (s): 13.6029
CPU system time (s): 0.116982
CPU usage (%): 98.989
Max. virtual memory (cumulated for all children) (KiB): 66312

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 13.6029
system time used= 0.116982
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15866
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= 572

runsolver used 0.013997 second user time and 0.044993 second system time

The end

Launcher Data 

Begin job on node50 at 2009-07-12 07:07:51
IDJOB=2082502
IDBENCH=57590
IDSOLVER=769
FILE ID=node50/2082502-1247375269
PBS_JOBID= 9507096
Free space on /tmp= 66408 MiB

SOLVER NAME= Mistral 1.545
BENCH NAME= CPAI08/csp/rand-8-20-5/normalized-rand-8-20-5-18-800-11_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-2082502-1247375269/watcher-2082502-1247375269 -o /tmp/evaluation-result-2082502-1247375269/solver-2082502-1247375269 -C 1800 -W 2000 -M 900  /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2082502-1247375269.xml

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

MD5SUM BENCH= 9a1e5061af5a11aec5f3135ecda7e6f0
RANDOM SEED=1580091011

node50.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		: 3000.231
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		: 3000.231
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:       1677216 kB
Buffers:          8876 kB
Cached:         101896 kB
SwapCached:          0 kB
Active:         283692 kB
Inactive:        40216 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1677216 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:           23264 kB
Writeback:           0 kB
Mapped:         228832 kB
Slab:            39640 kB
Committed_AS:   901972 kB
PageTables:       2244 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= 66404 MiB
End job on node50 at 2009-07-12 07:08:05