Trace number 2086982

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 0.3.2? (MO) 398.411 400.355

General information on the benchmark

Namecsp/langford4/
normalized-langford-4-21.xml
MD5SUM072422cec4661221beea8169477c3f47
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Satisfiable
(Un)Satisfiability was proved
Number of variables84
Number of constraints3549
Maximum constraint arity2
Maximum domain size84
Number of constraints which are defined in extension0
Number of constraints which are defined in intension3549
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c has big domains
0.00/0.01	c big-domain mode
0.18/0.20	c Seed is 248137134
0.18/0.20	c Constructing HOME/instance-2086982-1247727027.xml 
0.18/0.20	c deduced all_different(V1,V2,V3,V4,V5,V6,V7,V8,V9,V10,V11,V12,V13,V14,V15,V16,V17,V18,V19,V20,V21,V22,V23,V24,V25,V26,V27,V28,V29,V30,V31,V32,V33,V34,V35,V36,V37,V38,V39,V40,V41,V42,V43,V44,V45,V46,V47,V48,V49,V50,V51,V52,V53,V54,V55,V56,V57,V58,V59,V60,V61,V62,V63,V64,V65,V66,V67,V68,V69,V70,V71,V72,V73,V74,V75,V76,V77,V78,V79,V80,V81,V82,V83,V0)
0.18/0.20	c  with 3550 constraints
0.18/0.20	c Solving

Verifier Data 

ERROR: Unexpected answer ! ('s SATISFIABLE'/'s UNSATISFIABLE' expected)
Got answer: <no 's ' line found>

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2086982-1247727027/watcher-2086982-1247727027 -o /tmp/evaluation-result-2086982-1247727027/solver-2086982-1247727027 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 248137134 HOME/instance-2086982-1247727027.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: 2.24 2.13 2.03 4/72 11915
/proc/meminfo: memFree=1454096/2055920 swapFree=4192812/4192956
[pid=11915] ppid=11913 vsize=5356 CPUtime=0
/proc/11915/stat : 11915 (pcssolve) R 11913 11915 11225 0 -1 4194304 265 0 0 0 0 0 0 0 20 0 1 0 59766052 5484544 233 996147200 4194304 4889804 548682068800 18446744073709551615 251254996152 0 0 4100 65536 0 0 0 17 1 0 0
/proc/11915/statm: 1339 233 194 169 0 50 0

[startup+0.188777 s]
/proc/loadavg: 2.24 2.13 2.03 4/72 11915
/proc/meminfo: memFree=1454096/2055920 swapFree=4192812/4192956
[pid=11915] ppid=11913 vsize=6640 CPUtime=0.16
/proc/11915/stat : 11915 (pcs.big) R 11913 11915 11225 0 -1 4194304 1327 656 0 0 16 0 0 0 18 0 1 0 59766052 6799360 958 996147200 134512640 135215973 4294956304 18446744073709551615 4158960053 0 0 4096 0 0 0 0 17 1 0 0
/proc/11915/statm: 1660 958 408 171 0 585 0
Current children cumulated CPU time (s) 0.16
Current children cumulated vsize (KiB) 6640

[startup+0.201777 s]
/proc/loadavg: 2.24 2.13 2.03 4/72 11915
/proc/meminfo: memFree=1454096/2055920 swapFree=4192812/4192956
[pid=11915] ppid=11913 vsize=6640 CPUtime=0.18
/proc/11915/stat : 11915 (pcs.big) R 11913 11915 11225 0 -1 4194304 1331 656 0 0 18 0 0 0 18 0 1 0 59766052 6799360 962 996147200 134512640 135215973 4294956304 18446744073709551615 4158960136 0 0 4096 0 0 0 0 17 1 0 0
/proc/11915/statm: 1660 962 408 171 0 585 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 6640

[startup+0.301787 s]
/proc/loadavg: 2.24 2.13 2.03 4/72 11915
/proc/meminfo: memFree=1454096/2055920 swapFree=4192812/4192956
[pid=11915] ppid=11913 vsize=6640 CPUtime=0.28
/proc/11915/stat : 11915 (pcs.big) R 11913 11915 11225 0 -1 4194304 1331 656 0 0 28 0 0 0 19 0 1 0 59766052 6799360 962 996147200 134512640 135215973 4294956304 18446744073709551615 134532714 0 0 4096 0 0 0 0 17 1 0 0
/proc/11915/statm: 1660 962 408 171 0 585 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 6640

[startup+0.70183 s]
/proc/loadavg: 2.24 2.13 2.03 4/72 11915
/proc/meminfo: memFree=1454096/2055920 swapFree=4192812/4192956
[pid=11915] ppid=11913 vsize=7276 CPUtime=0.68
/proc/11915/stat : 11915 (pcs.big) R 11913 11915 11225 0 -1 4194304 1490 656 0 0 68 0 0 0 22 0 1 0 59766052 7450624 1121 996147200 134512640 135215973 4294956304 18446744073709551615 134585668 0 0 4096 0 0 0 0 17 1 0 0
/proc/11915/statm: 1819 1121 408 171 0 744 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 7276

[startup+1.50192 s]
/proc/loadavg: 2.24 2.13 2.03 3/73 11920
/proc/meminfo: memFree=1450184/2055920 swapFree=4192812/4192956
[pid=11915] ppid=11913 vsize=9232 CPUtime=1.47
/proc/11915/stat : 11915 (pcs.big) R 11913 11915 11225 0 -1 4194304 1991 656 0 0 147 0 0 0 25 0 1 0 59766052 9453568 1622 996147200 134512640 135215973 4294956304 18446744073709551615 4158960064 0 0 4096 0 0 0 0 17 1 0 0
/proc/11915/statm: 2308 1622 408 171 0 1233 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 9232

[startup+3.10109 s]
/proc/loadavg: 2.24 2.13 2.03 3/73 11920
/proc/meminfo: memFree=1447688/2055920 swapFree=4192812/4192956
[pid=11915] ppid=11913 vsize=12620 CPUtime=3.07
/proc/11915/stat : 11915 (pcs.big) R 11913 11915 11225 0 -1 4194304 2827 656 0 0 306 1 0 0 25 0 1 0 59766052 12922880 2425 996147200 134512640 135215973 4294956304 18446744073709551615 2270843 0 0 4096 0 0 0 0 17 1 0 0
/proc/11915/statm: 3155 2425 408 171 0 2080 0
Current children cumulated CPU time (s) 3.07
Current children cumulated vsize (KiB) 12620

[startup+6.30144 s]
/proc/loadavg: 2.22 2.12 2.03 3/73 11920
/proc/meminfo: memFree=1438728/2055920 swapFree=4192812/4192956
[pid=11915] ppid=11913 vsize=21420 CPUtime=6.25
/proc/11915/stat : 11915 (pcs.big) R 11913 11915 11225 0 -1 4194304 5090 656 0 0 623 2 0 0 25 0 1 0 59766052 21934080 4590 996147200 134512640 135215973 4294956304 18446744073709551615 134982842 0 0 4096 0 0 0 0 17 1 0 0
/proc/11915/statm: 5355 4590 408 171 0 4280 0
Current children cumulated CPU time (s) 6.25
Current children cumulated vsize (KiB) 21420

[startup+12.7021 s]
/proc/loadavg: 2.20 2.12 2.03 3/73 11920
/proc/meminfo: memFree=1421128/2055920 swapFree=4192812/4192956
[pid=11915] ppid=11913 vsize=35788 CPUtime=12.62
/proc/11915/stat : 11915 (pcs.big) R 11913 11915 11225 0 -1 4194304 8744 656 0 0 1258 4 0 0 25 0 1 0 59766052 36646912 8115 996147200 134512640 135215973 4294956304 18446744073709551615 134599868 0 0 4096 0 0 0 0 17 1 0 0
/proc/11915/statm: 8947 8115 408 171 0 7872 0
Current children cumulated CPU time (s) 12.62
Current children cumulated vsize (KiB) 35788

[startup+25.5015 s]
/proc/loadavg: 2.16 2.11 2.03 3/73 11920
/proc/meminfo: memFree=1387848/2055920 swapFree=4192812/4192956
[pid=11915] ppid=11913 vsize=67236 CPUtime=25.36
/proc/11915/stat : 11915 (pcs.big) R 11913 11915 11225 0 -1 4194304 16801 656 0 0 2528 8 0 0 25 0 1 0 59766052 68849664 15915 996147200 134512640 135215973 4294956304 18446744073709551615 134647968 0 0 4096 0 0 0 0 17 1 0 0
/proc/11915/statm: 16809 15915 408 171 0 15734 0
Current children cumulated CPU time (s) 25.36
Current children cumulated vsize (KiB) 67236

[startup+51.1013 s]
/proc/loadavg: 2.10 2.10 2.03 3/73 11920
/proc/meminfo: memFree=1321800/2055920 swapFree=4192812/4192956
[pid=11915] ppid=11913 vsize=130648 CPUtime=50.83
/proc/11915/stat : 11915 (pcs.big) R 11913 11915 11225 0 -1 4194304 32968 656 0 0 5067 16 0 0 25 0 1 0 59766052 133783552 31505 996147200 134512640 135215973 4294956304 18446744073709551615 2270843 0 0 4096 0 0 0 0 17 1 0 0
/proc/11915/statm: 32662 31505 408 171 0 31587 0
Current children cumulated CPU time (s) 50.83
Current children cumulated vsize (KiB) 130648

[startup+102.302 s]
/proc/loadavg: 2.04 2.08 2.02 3/73 11922
/proc/meminfo: memFree=1189000/2055920 swapFree=4192812/4192956
[pid=11915] ppid=11913 vsize=252800 CPUtime=101.79
/proc/11915/stat : 11915 (pcs.big) R 11913 11915 11225 0 -1 4194304 64168 656 0 0 10147 32 0 0 25 0 1 0 59766052 258867200 61679 996147200 134512640 135215973 4294956304 18446744073709551615 134589862 0 0 4096 0 0 0 0 17 1 0 0
/proc/11915/statm: 63200 61679 408 171 0 62125 0
Current children cumulated CPU time (s) 101.79
Current children cumulated vsize (KiB) 252800

[startup+162.301 s]
/proc/loadavg: 2.01 2.07 2.02 3/73 11922
/proc/meminfo: memFree=1036872/2055920 swapFree=4192812/4192956
[pid=11915] ppid=11913 vsize=394812 CPUtime=161.5
/proc/11915/stat : 11915 (pcs.big) R 11913 11915 11225 0 -1 4194304 100391 656 0 0 16101 49 0 0 25 0 1 0 59766052 404287488 97773 996147200 134512640 135215973 4294956304 18446744073709551615 134532667 0 0 4096 0 0 0 0 17 1 0 0
/proc/11915/statm: 98703 97773 408 171 0 97628 0
Current children cumulated CPU time (s) 161.5
Current children cumulated vsize (KiB) 394812

[startup+222.307 s]
/proc/loadavg: 2.07 2.07 2.02 3/73 11922
/proc/meminfo: memFree=893256/2055920 swapFree=4192812/4192956
[pid=11915] ppid=11913 vsize=533120 CPUtime=221.21
/proc/11915/stat : 11915 (pcs.big) R 11913 11915 11225 0 -1 4194304 135694 656 0 0 22054 67 0 0 25 0 1 0 59766052 545914880 131027 996147200 134512640 135215973 4294956304 18446744073709551615 4158960084 0 0 4096 0 0 0 0 17 1 0 0
/proc/11915/statm: 133280 131027 408 171 0 132205 0
Current children cumulated CPU time (s) 221.21
Current children cumulated vsize (KiB) 533120

[startup+282.302 s]
/proc/loadavg: 2.09 2.07 2.02 3/73 11922
/proc/meminfo: memFree=750728/2055920 swapFree=4192812/4192956
[pid=11915] ppid=11913 vsize=666932 CPUtime=280.92
/proc/11915/stat : 11915 (pcs.big) R 11913 11915 11225 0 -1 4194304 169831 656 0 0 28008 84 0 0 25 0 1 0 59766052 682938368 164907 996147200 134512640 135215973 4294956304 18446744073709551615 134739658 0 0 4096 0 0 0 0 17 1 0 0
/proc/11915/statm: 166733 164907 408 171 0 165658 0
Current children cumulated CPU time (s) 280.92
Current children cumulated vsize (KiB) 666932

[startup+342.301 s]
/proc/loadavg: 2.09 2.07 2.02 3/73 11922
/proc/meminfo: memFree=617352/2055920 swapFree=4192812/4192956
[pid=11915] ppid=11913 vsize=788296 CPUtime=340.62
/proc/11915/stat : 11915 (pcs.big) R 11913 11915 11225 0 -1 4194304 200916 656 0 0 33963 99 0 0 25 0 1 0 59766052 807215104 195992 996147200 134512640 135215973 4294956304 18446744073709551615 134609802 0 0 4096 0 0 0 0 17 1 0 0
/proc/11915/statm: 197074 195992 408 171 0 195999 0
Current children cumulated CPU time (s) 340.62
Current children cumulated vsize (KiB) 788296



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+400.201 s]
/proc/loadavg: 2.08 2.07 2.02 3/73 11922
/proc/meminfo: memFree=486792/2055920 swapFree=4192812/4192956
[pid=11915] ppid=11913 vsize=921680 CPUtime=398.25
/proc/11915/stat : 11915 (pcs.big) R 11913 11915 11225 0 -1 4194304 235005 656 0 0 39708 117 0 0 25 0 1 0 59766052 943800320 225984 996147200 134512640 135215973 4294956304 18446744073709551615 4158960060 0 0 4096 0 0 0 0 17 1 0 0
/proc/11915/statm: 230420 225984 408 171 0 229345 0
Current children cumulated CPU time (s) 398.25
Current children cumulated vsize (KiB) 921680

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

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

[startup+400.306 s]
/proc/loadavg: 2.08 2.07 2.02 3/73 11922
/proc/meminfo: memFree=486792/2055920 swapFree=4192812/4192956
[pid=11915] ppid=11913 vsize=0 CPUtime=398.35
/proc/11915/stat : 11915 (pcs.big) R 11913 11915 11225 0 -1 4195332 235005 656 0 0 39708 127 0 0 25 0 1 0 59766052 0 0 996147200 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/11915/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 398.35
Current children cumulated vsize (KiB) 0

Child ended because it received signal 15 (SIGTERM)
Real time (s): 400.355
CPU time (s): 398.411
CPU user time (s): 397.086
CPU system time (s): 1.3258
CPU usage (%): 99.5146
Max. virtual memory (cumulated for all children) (KiB): 921680

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 397.086
system time used= 1.3258
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 235661
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= 19
involuntary context switches= 4469

runsolver used 0.375942 second user time and 1.09283 second system time

The end

Launcher Data 

Begin job on node64 at 2009-07-16 08:50:27
IDJOB=2086982
IDBENCH=58671
IDSOLVER=733
FILE ID=node64/2086982-1247727027
PBS_JOBID= 9521546
Free space on /tmp= 66328 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/langford4/normalized-langford-4-21.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2086982-1247727027/watcher-2086982-1247727027 -o /tmp/evaluation-result-2086982-1247727027/solver-2086982-1247727027 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 248137134 HOME/instance-2086982-1247727027.xml

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

MD5SUM BENCH= 072422cec4661221beea8169477c3f47
RANDOM SEED=248137134

node64.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		: 3000.220
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		: 3000.220
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:       1454576 kB
Buffers:         89752 kB
Cached:         349120 kB
SwapCached:          0 kB
Active:         149712 kB
Inactive:       364304 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1454576 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2136 kB
Writeback:           0 kB
Mapped:          86652 kB
Slab:            72264 kB
Committed_AS:   544348 kB
PageTables:       1872 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66328 MiB
End job on node64 at 2009-07-16 08:57:10