Trace number 2082451

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
pcs-restart 0.3.2SAT 42.4216 42.8442

DiagnosticValue
ASSIGNMENTS2649

General information on the benchmark

Namecsp/rand-8-20-5/
normalized-rand-8-20-5-18-800-3_ext.xml
MD5SUM8f0b2a49e1135ea84dc0e5c626ff8a69
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 benchmark8.69568
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 

0.13/0.27	c small-domain mode
0.13/0.28	c Seed is 1729421239
0.13/0.28	c Constructing HOME/instance-2082451-1247721159.xml  with 18 constraints
7.99/8.12	c Solving 2649 backtracks 10 restarts
42.36/42.84	s SATISFIABLE
42.36/42.84	c V0=0, V1=0, V2=1, V3=3, V4=4, V5=1, V6=4, V7=4, V8=2, V9=1, V10=0, V11=0, V12=0, V13=4, V14=0, V15=4, V16=0, V17=0, V18=4, V19=4, 
42.36/42.84	v 0 0 1 3 4 1 4 4 2 1 0 0 0 4 0 4 0 0 4 4 
42.36/42.84	d ASSIGNMENTS 2649

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-2082451-1247721159/watcher-2082451-1247721159 -o /tmp/evaluation-result-2082451-1247721159/solver-2082451-1247721159 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1729421239 HOME/instance-2082451-1247721159.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: 2.09 2.07 2.02 4/81 12159
/proc/meminfo: memFree=1167440/2055920 swapFree=4192812/4192956
[pid=12159] ppid=12157 vsize=5356 CPUtime=0
/proc/12159/stat : 12159 (pcssolve) R 12157 12159 11247 0 -1 4194304 290 0 0 0 0 0 0 0 23 0 1 0 59180113 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 266890439327 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/12159/statm: 1339 241 200 169 0 50 0
[pid=12160] ppid=12159 vsize=3676 CPUtime=0
/proc/12160/stat : 12160 (fgrep) R 12159 12159 11247 0 -1 4194304 137 0 0 0 0 0 0 0 24 0 1 0 59180114 3764224 104 996147200 4194304 4274172 548682068976 18446744073709551615 266890285793 0 0 4096 0 0 0 0 17 1 0 0
/proc/12160/statm: 919 104 84 19 0 43 0
[pid=12161] ppid=12159 vsize=5356 CPUtime=0
/proc/12161/stat : 12161 (pcssolve) R 12159 12159 11247 0 -1 4194368 0 0 0 0 0 0 0 0 23 0 1 0 59180114 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 266890439327 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/12161/statm: 1339 241 200 169 0 50 0

[startup+0.100902 s]
/proc/loadavg: 2.09 2.07 2.02 4/81 12159
/proc/meminfo: memFree=1167440/2055920 swapFree=4192812/4192956
[pid=12159] ppid=12157 vsize=5356 CPUtime=0.05
/proc/12159/stat : 12159 (pcssolve) S 12157 12159 11247 0 -1 4194304 339 1332 0 0 0 0 3 2 20 0 1 0 59180113 5484544 242 996147200 4194304 4889804 548682068800 18446744073709551615 266890437444 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/12159/statm: 1339 242 201 169 0 50 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 5356

[startup+0.202916 s]
/proc/loadavg: 2.09 2.07 2.02 4/81 12159
/proc/meminfo: memFree=1167440/2055920 swapFree=4192812/4192956
[pid=12159] ppid=12157 vsize=5356 CPUtime=0.13
/proc/12159/stat : 12159 (pcssolve) S 12157 12159 11247 0 -1 4194304 367 2678 0 0 0 0 8 5 18 0 1 0 59180113 5484544 243 996147200 4194304 4889804 548682068800 18446744073709551615 266890437444 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/12159/statm: 1339 243 202 169 0 50 0
Current children cumulated CPU time (s) 0.13
Current children cumulated vsize (KiB) 5356

[startup+0.301913 s]
/proc/loadavg: 2.09 2.07 2.02 4/81 12159
/proc/meminfo: memFree=1167440/2055920 swapFree=4192812/4192956
[pid=12159] ppid=12157 vsize=5560 CPUtime=0.28
/proc/12159/stat : 12159 (pcs.small) R 12157 12159 11247 0 -1 4194304 904 3866 0 0 2 0 18 8 17 0 1 0 59180113 5693440 513 996147200 134512640 135095119 4294956304 18446744073709551615 134741523 0 0 4096 0 0 0 0 17 1 0 0
/proc/12159/statm: 1390 513 361 142 0 344 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 5560

[startup+0.701966 s]
/proc/loadavg: 2.09 2.07 2.02 4/81 12159
/proc/meminfo: memFree=1167440/2055920 swapFree=4192812/4192956
[pid=12159] ppid=12157 vsize=11100 CPUtime=0.68
/proc/12159/stat : 12159 (pcs.small) R 12157 12159 11247 0 -1 4194304 3001 3866 0 0 41 1 18 8 21 0 1 0 59180113 11366400 2107 996147200 134512640 135095119 4294956304 18446744073709551615 134914409 0 0 4096 0 0 0 0 17 1 0 0
/proc/12159/statm: 2775 2107 375 142 0 1729 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 11100

[startup+1.50105 s]
/proc/loadavg: 2.40 2.14 2.04 3/82 12165
/proc/meminfo: memFree=1157256/2055920 swapFree=4192812/4192956
[pid=12159] ppid=12157 vsize=19708 CPUtime=1.46
/proc/12159/stat : 12159 (pcs.small) R 12157 12159 11247 0 -1 4194304 5256 3866 0 0 117 3 18 8 25 0 1 0 59180113 20180992 3281 996147200 134512640 135095119 4294956304 18446744073709551615 134944943 0 0 4096 0 0 0 0 17 1 0 0
/proc/12159/statm: 4927 3281 375 142 0 3881 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 19708

[startup+3.10123 s]
/proc/loadavg: 2.40 2.14 2.04 3/82 12165
/proc/meminfo: memFree=1152008/2055920 swapFree=4192812/4192956
[pid=12159] ppid=12157 vsize=35960 CPUtime=3.04
/proc/12159/stat : 12159 (pcs.small) R 12157 12159 11247 0 -1 4194304 9222 3866 0 0 273 5 18 8 25 0 1 0 59180113 36823040 5582 996147200 134512640 135095119 4294956304 18446744073709551615 9072222 0 0 4096 0 0 0 0 17 1 0 0
/proc/12159/statm: 8990 5582 375 142 0 7944 0
Current children cumulated CPU time (s) 3.04
Current children cumulated vsize (KiB) 35960

[startup+6.30159 s]
/proc/loadavg: 2.37 2.14 2.04 3/82 12165
/proc/meminfo: memFree=1129864/2055920 swapFree=4192812/4192956
[pid=12159] ppid=12157 vsize=70972 CPUtime=6.21
/proc/12159/stat : 12159 (pcs.small) R 12157 12159 11247 0 -1 4194304 18646 3866 0 0 586 9 18 8 25 0 1 0 59180113 72675328 11058 996147200 134512640 135095119 4294956304 18446744073709551615 134944194 0 0 4096 0 0 0 0 17 1 0 0
/proc/12159/statm: 17743 11058 375 142 0 16697 0
Current children cumulated CPU time (s) 6.21
Current children cumulated vsize (KiB) 70972

[startup+12.7013 s]
/proc/loadavg: 2.34 2.13 2.04 3/82 12165
/proc/meminfo: memFree=1113352/2055920 swapFree=4192812/4192956
[pid=12159] ppid=12157 vsize=58180 CPUtime=12.55
/proc/12159/stat : 12159 (pcs.small) R 12157 12159 11247 0 -1 4194304 23612 3866 0 0 1217 12 18 8 25 0 1 0 59180113 59576320 13896 996147200 134512640 135095119 4294956304 18446744073709551615 134918203 0 0 4096 0 0 0 0 17 1 0 0
/proc/12159/statm: 14545 13896 389 142 0 13499 0
Current children cumulated CPU time (s) 12.55
Current children cumulated vsize (KiB) 58180

[startup+25.5027 s]
/proc/loadavg: 2.34 2.14 2.04 3/82 12165
/proc/meminfo: memFree=1113544/2055920 swapFree=4192812/4192956
[pid=12159] ppid=12157 vsize=58180 CPUtime=25.22
/proc/12159/stat : 12159 (pcs.small) R 12157 12159 11247 0 -1 4194304 23612 3866 0 0 2484 12 18 8 25 0 1 0 59180113 59576320 13896 996147200 134512640 135095119 4294956304 18446744073709551615 134918185 0 0 4096 0 0 0 0 17 1 0 0
/proc/12159/statm: 14545 13896 389 142 0 13499 0
Current children cumulated CPU time (s) 25.22
Current children cumulated vsize (KiB) 58180

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

[startup+25.6027 s]
/proc/loadavg: 2.34 2.14 2.04 3/82 12165
/proc/meminfo: memFree=1113544/2055920 swapFree=4192812/4192956
[pid=12159] ppid=12157 vsize=58180 CPUtime=25.32
/proc/12159/stat : 12159 (pcs.small) R 12157 12159 11247 0 -1 4194304 23612 3866 0 0 2494 12 18 8 25 0 1 0 59180113 59576320 13896 996147200 134512640 135095119 4294956304 18446744073709551615 134918185 0 0 4096 0 0 0 0 17 1 0 0
/proc/12159/statm: 14545 13896 389 142 0 13499 0
Current children cumulated CPU time (s) 25.32
Current children cumulated vsize (KiB) 58180

[startup+32.0065 s]
/proc/loadavg: 2.32 2.14 2.04 3/82 12165
/proc/meminfo: memFree=1113544/2055920 swapFree=4192812/4192956
[pid=12159] ppid=12157 vsize=58180 CPUtime=31.67
/proc/12159/stat : 12159 (pcs.small) R 12157 12159 11247 0 -1 4194304 23612 3866 0 0 3129 12 18 8 25 0 1 0 59180113 59576320 13896 996147200 134512640 135095119 4294956304 18446744073709551615 134918185 0 0 4096 0 0 0 0 17 1 0 0
/proc/12159/statm: 14545 13896 389 142 0 13499 0
Current children cumulated CPU time (s) 31.67
Current children cumulated vsize (KiB) 58180

[startup+38.4012 s]
/proc/loadavg: 2.29 2.14 2.04 3/82 12165
/proc/meminfo: memFree=1113544/2055920 swapFree=4192812/4192956
[pid=12159] ppid=12157 vsize=58180 CPUtime=38
/proc/12159/stat : 12159 (pcs.small) R 12157 12159 11247 0 -1 4194304 23612 3866 0 0 3762 12 18 8 25 0 1 0 59180113 59576320 13896 996147200 134512640 135095119 4294956304 18446744073709551615 134918190 0 0 4096 0 0 0 0 17 1 0 0
/proc/12159/statm: 14545 13896 389 142 0 13499 0
Current children cumulated CPU time (s) 38
Current children cumulated vsize (KiB) 58180

[startup+40.0014 s]
/proc/loadavg: 2.29 2.14 2.04 3/82 12165
/proc/meminfo: memFree=1113544/2055920 swapFree=4192812/4192956
[pid=12159] ppid=12157 vsize=58180 CPUtime=39.59
/proc/12159/stat : 12159 (pcs.small) R 12157 12159 11247 0 -1 4194304 23612 3866 0 0 3921 12 18 8 25 0 1 0 59180113 59576320 13896 996147200 134512640 135095119 4294956304 18446744073709551615 134918227 0 0 4096 0 0 0 0 17 1 0 0
/proc/12159/statm: 14545 13896 389 142 0 13499 0
Current children cumulated CPU time (s) 39.59
Current children cumulated vsize (KiB) 58180

[startup+41.6025 s]
/proc/loadavg: 2.27 2.14 2.04 3/82 12165
/proc/meminfo: memFree=1113544/2055920 swapFree=4192812/4192956
[pid=12159] ppid=12157 vsize=58180 CPUtime=41.17
/proc/12159/stat : 12159 (pcs.small) R 12157 12159 11247 0 -1 4194304 23612 3866 0 0 4079 12 18 8 25 0 1 0 59180113 59576320 13896 996147200 134512640 135095119 4294956304 18446744073709551615 134918185 0 0 4096 0 0 0 0 17 1 0 0
/proc/12159/statm: 14545 13896 389 142 0 13499 0
Current children cumulated CPU time (s) 41.17
Current children cumulated vsize (KiB) 58180

[startup+42.4026 s]
/proc/loadavg: 2.27 2.14 2.04 3/82 12165
/proc/meminfo: memFree=1113544/2055920 swapFree=4192812/4192956
[pid=12159] ppid=12157 vsize=58180 CPUtime=41.97
/proc/12159/stat : 12159 (pcs.small) R 12157 12159 11247 0 -1 4194304 23612 3866 0 0 4159 12 18 8 25 0 1 0 59180113 59576320 13896 996147200 134512640 135095119 4294956304 18446744073709551615 134918185 0 0 4096 0 0 0 0 17 1 0 0
/proc/12159/statm: 14545 13896 389 142 0 13499 0
Current children cumulated CPU time (s) 41.97
Current children cumulated vsize (KiB) 58180

[startup+42.8027 s]
/proc/loadavg: 2.27 2.14 2.04 3/82 12165
/proc/meminfo: memFree=1113544/2055920 swapFree=4192812/4192956
[pid=12159] ppid=12157 vsize=58180 CPUtime=42.36
/proc/12159/stat : 12159 (pcs.small) R 12157 12159 11247 0 -1 4194304 23612 3866 0 0 4198 12 18 8 25 0 1 0 59180113 59576320 13896 996147200 134512640 135095119 4294956304 18446744073709551615 134918190 0 0 4096 0 0 0 0 17 1 0 0
/proc/12159/statm: 14545 13896 389 142 0 13499 0
Current children cumulated CPU time (s) 42.36
Current children cumulated vsize (KiB) 58180

Child status: 0
Real time (s): 42.8442
CPU time (s): 42.4216
CPU user time (s): 42.2016
CPU system time (s): 0.219966
CPU usage (%): 99.0135
Max. virtual memory (cumulated for all children) (KiB): 89404

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 42.2016
system time used= 0.219966
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 27481
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= 1732

runsolver used 0.05999 second user time and 0.147977 second system time

The end

Launcher Data 

Begin job on node38 at 2009-07-16 07:12:40
IDJOB=2082451
IDBENCH=57586
IDSOLVER=734
FILE ID=node38/2082451-1247721159
PBS_JOBID= 9521415
Free space on /tmp= 66208 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/rand-8-20-5/normalized-rand-8-20-5-18-800-3_ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2082451-1247721159/watcher-2082451-1247721159 -o /tmp/evaluation-result-2082451-1247721159/solver-2082451-1247721159 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1729421239 HOME/instance-2082451-1247721159.xml

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

MD5SUM BENCH= 8f0b2a49e1135ea84dc0e5c626ff8a69
RANDOM SEED=1729421239

node38.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		: 3000.229
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		: 3000.229
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:       1167920 kB
Buffers:         88328 kB
Cached:         648044 kB
SwapCached:          0 kB
Active:         282932 kB
Inactive:       507020 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1167920 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:           23764 kB
Writeback:           0 kB
Mapped:          74028 kB
Slab:            82912 kB
Committed_AS:   586716 kB
PageTables:       2012 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= 66208 MiB
End job on node38 at 2009-07-16 07:13:23