Trace number 2086905

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) 358.939 362.352

General information on the benchmark

Namecsp/langford4/
normalized-langford-4-30.xml
MD5SUM947fd10df4466df33806de675e63a7bd
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 variables120
Number of constraints7230
Maximum constraint arity2
Maximum domain size120
Number of constraints which are defined in extension0
Number of constraints which are defined in intension7230
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
0.00/0.02	c Seed is 1271413936
0.00/0.02	c Constructing HOME/instance-2086905-1247726937.xml 
0.18/0.27	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,V84,V85,V86,V87,V88,V89,V90,V91,V92,V93,V94,V95,V96,V97,V98,V99,V100,V101,V102,V103,V104,V105,V106,V107,V108,V109,V110,V111,V112,V113,V114,V115,V116,V117,V118,V119,V0)
0.18/0.27	c  with 7231 constraints
0.18/0.27	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-2086905-1247726937/watcher-2086905-1247726937 -o /tmp/evaluation-result-2086905-1247726937/solver-2086905-1247726937 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1271413936 HOME/instance-2086905-1247726937.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 2.00 4/81 19422
/proc/meminfo: memFree=1458472/2055920 swapFree=4192812/4192956
[pid=19422] ppid=19420 vsize=5356 CPUtime=0
/proc/19422/stat : 19422 (pcssolve) R 19420 19422 19183 0 -1 4194304 290 0 0 0 0 0 0 0 21 0 1 0 59756389 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 233402067615 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/19422/statm: 1339 241 200 169 0 50 0
[pid=19423] ppid=19422 vsize=3544 CPUtime=0
/proc/19423/stat : 19423 (fgrep) R 19422 19422 19183 0 -1 4194304 103 0 0 0 0 0 0 0 22 0 1 0 59756390 3629056 70 996147200 4194304 4274172 548682068976 18446744073709551615 233402498372 0 0 4096 0 0 0 0 17 1 0 0
/proc/19423/statm: 886 70 53 19 0 10 0

[startup+0.0863011 s]
/proc/loadavg: 1.92 2.00 2.00 4/81 19422
/proc/meminfo: memFree=1458472/2055920 swapFree=4192812/4192956
[pid=19422] ppid=19420 vsize=4876 CPUtime=0.06
/proc/19422/stat : 19422 (pcs.big) R 19420 19422 19183 0 -1 4194304 898 656 0 0 6 0 0 0 23 0 1 0 59756389 4993024 529 996147200 134512640 135215973 4294956304 18446744073709551615 134835425 0 0 4096 0 0 0 0 17 1 0 0
/proc/19422/statm: 1219 529 384 171 0 144 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 4876

[startup+0.1013 s]
/proc/loadavg: 1.92 2.00 2.00 4/81 19422
/proc/meminfo: memFree=1458472/2055920 swapFree=4192812/4192956
[pid=19422] ppid=19420 vsize=5008 CPUtime=0.08
/proc/19422/stat : 19422 (pcs.big) R 19420 19422 19183 0 -1 4194304 932 656 0 0 8 0 0 0 23 0 1 0 59756389 5128192 563 996147200 134512640 135215973 4294956304 18446744073709551615 4159733007 0 0 4096 0 0 0 0 17 1 0 0
/proc/19422/statm: 1252 563 384 171 0 177 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5008

[startup+0.301327 s]
/proc/loadavg: 1.92 2.00 2.00 4/81 19422
/proc/meminfo: memFree=1458472/2055920 swapFree=4192812/4192956
[pid=19422] ppid=19420 vsize=6360 CPUtime=0.28
/proc/19422/stat : 19422 (pcs.big) R 19420 19422 19183 0 -1 4194304 1310 656 0 0 28 0 0 0 25 0 1 0 59756389 6512640 908 996147200 134512640 135215973 4294956304 18446744073709551615 134585344 0 0 4096 0 0 0 0 17 1 0 0
/proc/19422/statm: 1590 908 406 171 0 515 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 6360

[startup+0.701367 s]
/proc/loadavg: 1.92 2.00 2.00 4/81 19422
/proc/meminfo: memFree=1458472/2055920 swapFree=4192812/4192956
[pid=19422] ppid=19420 vsize=9472 CPUtime=0.67
/proc/19422/stat : 19422 (pcs.big) R 19420 19422 19183 0 -1 4194304 2103 656 0 0 67 0 0 0 25 0 1 0 59756389 9699328 1648 996147200 134512640 135215973 4294956304 18446744073709551615 134585819 0 0 4096 0 0 0 0 17 1 0 0
/proc/19422/statm: 2368 1648 408 171 0 1293 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 9472

[startup+1.50145 s]
/proc/loadavg: 1.93 2.00 2.00 3/82 19427
/proc/meminfo: memFree=1453344/2055920 swapFree=4192812/4192956
[pid=19422] ppid=19420 vsize=10740 CPUtime=1.47
/proc/19422/stat : 19422 (pcs.big) R 19420 19422 19183 0 -1 4194304 2403 656 0 0 146 1 0 0 25 0 1 0 59756389 10997760 1948 996147200 134512640 135215973 4294956304 18446744073709551615 134604709 0 0 4096 0 0 0 0 17 1 0 0
/proc/19422/statm: 2685 1948 408 171 0 1610 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 10740

[startup+3.10161 s]
/proc/loadavg: 1.93 2.00 2.00 3/82 19427
/proc/meminfo: memFree=1451168/2055920 swapFree=4192812/4192956
[pid=19422] ppid=19420 vsize=14356 CPUtime=3.05
/proc/19422/stat : 19422 (pcs.big) R 19420 19422 19183 0 -1 4194304 3322 656 0 0 303 2 0 0 25 0 1 0 59756389 14700544 2867 996147200 134512640 135215973 4294956304 18446744073709551615 134902573 0 0 4096 0 0 0 0 17 1 0 0
/proc/19422/statm: 3589 2867 408 171 0 2514 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 14356

[startup+6.30294 s]
/proc/loadavg: 1.93 2.00 2.00 3/82 19427
/proc/meminfo: memFree=1443232/2055920 swapFree=4192812/4192956
[pid=19422] ppid=19420 vsize=21704 CPUtime=6.22
/proc/19422/stat : 19422 (pcs.big) R 19420 19422 19183 0 -1 4194304 5172 656 0 0 619 3 0 0 25 0 1 0 59756389 22224896 4684 996147200 134512640 135215973 4294956304 18446744073709551615 134933603 0 0 4096 0 0 0 0 17 1 0 0
/proc/19422/statm: 5426 4684 408 171 0 4351 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 21704

[startup+12.7016 s]
/proc/loadavg: 1.94 2.00 2.00 3/82 19427
/proc/meminfo: memFree=1426080/2055920 swapFree=4192812/4192956
[pid=19422] ppid=19420 vsize=38064 CPUtime=12.56
/proc/19422/stat : 19422 (pcs.big) R 19420 19422 19183 0 -1 4194304 9349 656 0 0 1251 5 0 0 25 0 1 0 59756389 38977536 8796 996147200 134512640 135215973 4294956304 18446744073709551615 4158960634 0 0 4096 0 0 0 0 17 1 0 0
/proc/19422/statm: 9516 8796 408 171 0 8441 0
Current children cumulated CPU time (s) 12.56
Current children cumulated vsize (KiB) 38064

[startup+25.5018 s]
/proc/loadavg: 1.95 2.00 2.00 3/82 19427
/proc/meminfo: memFree=1396704/2055920 swapFree=4192812/4192956
[pid=19422] ppid=19420 vsize=66812 CPUtime=25.24
/proc/19422/stat : 19422 (pcs.big) R 19420 19422 19183 0 -1 4194304 16650 656 0 0 2516 8 0 0 25 0 1 0 59756389 68415488 15903 996147200 134512640 135215973 4294956304 18446744073709551615 135094727 0 0 4096 0 0 0 0 17 1 0 0
/proc/19422/statm: 16703 15903 408 171 0 15628 0
Current children cumulated CPU time (s) 25.24
Current children cumulated vsize (KiB) 66812

[startup+51.1014 s]
/proc/loadavg: 1.97 2.00 2.00 3/82 19427
/proc/meminfo: memFree=1332128/2055920 swapFree=4192812/4192956
[pid=19422] ppid=19420 vsize=132248 CPUtime=50.59
/proc/19422/stat : 19422 (pcs.big) R 19420 19422 19183 0 -1 4194304 33246 656 0 0 5042 17 0 0 25 0 1 0 59756389 135421952 32242 996147200 134512640 135215973 4294956304 18446744073709551615 134532930 0 0 4096 0 0 0 0 17 1 0 0
/proc/19422/statm: 33062 32242 408 171 0 31987 0
Current children cumulated CPU time (s) 50.59
Current children cumulated vsize (KiB) 132248

[startup+102.306 s]
/proc/loadavg: 1.98 2.00 2.00 3/82 19427
/proc/meminfo: memFree=1209824/2055920 swapFree=4192812/4192956
[pid=19422] ppid=19420 vsize=252960 CPUtime=101.32
/proc/19422/stat : 19422 (pcs.big) R 19420 19422 19183 0 -1 4194304 63937 656 0 0 10094 38 0 0 25 0 1 0 59756389 259031040 62420 996147200 134512640 135215973 4294956304 18446744073709551615 134585697 0 0 4096 0 0 0 0 17 1 0 0
/proc/19422/statm: 63240 62420 408 171 0 62165 0
Current children cumulated CPU time (s) 101.32
Current children cumulated vsize (KiB) 252960

[startup+162.301 s]
/proc/loadavg: 1.99 2.00 2.00 3/82 19427
/proc/meminfo: memFree=1069856/2055920 swapFree=4192812/4192956
[pid=19422] ppid=19420 vsize=396340 CPUtime=160.75
/proc/19422/stat : 19422 (pcs.big) R 19420 19422 19183 0 -1 4194304 100345 656 0 0 16019 56 0 0 25 0 1 0 59756389 405852160 97674 996147200 134512640 135215973 4294956304 18446744073709551615 4158960000 0 0 4096 0 0 0 0 17 1 0 0
/proc/19422/statm: 99085 97674 408 171 0 98010 0
Current children cumulated CPU time (s) 160.75
Current children cumulated vsize (KiB) 396340

[startup+222.301 s]
/proc/loadavg: 1.99 2.00 2.00 3/82 19429
/proc/meminfo: memFree=905632/2055920 swapFree=4192812/4192956
[pid=19422] ppid=19420 vsize=557364 CPUtime=220.19
/proc/19422/stat : 19422 (pcs.big) R 19420 19422 19183 0 -1 4194304 141144 656 0 0 21942 77 0 0 25 0 1 0 59756389 570740736 138473 996147200 134512640 135215973 4294956304 18446744073709551615 134648472 0 0 4096 0 0 0 0 17 1 0 0
/proc/19422/statm: 139341 138473 408 171 0 138266 0
Current children cumulated CPU time (s) 220.19
Current children cumulated vsize (KiB) 557364

[startup+282.301 s]
/proc/loadavg: 2.08 2.03 2.01 3/82 19429
/proc/meminfo: memFree=733856/2055920 swapFree=4192812/4192956
[pid=19422] ppid=19420 vsize=736076 CPUtime=279.62
/proc/19422/stat : 19422 (pcs.big) R 19420 19422 19183 0 -1 4194304 186358 656 0 0 27862 100 0 0 25 0 1 0 59756389 753741824 181638 996147200 134512640 135215973 4294956304 18446744073709551615 134590067 0 0 4096 0 0 0 0 17 1 0 0
/proc/19422/statm: 184019 181638 408 171 0 182944 0
Current children cumulated CPU time (s) 279.62
Current children cumulated vsize (KiB) 736076

[startup+342.301 s]
/proc/loadavg: 2.15 2.06 2.02 3/82 19429
/proc/meminfo: memFree=591008/2055920 swapFree=4192812/4192956
[pid=19422] ppid=19420 vsize=874968 CPUtime=339.07
/proc/19422/stat : 19422 (pcs.big) R 19420 19422 19183 0 -1 4194304 221636 656 0 0 33788 119 0 0 25 0 1 0 59756389 895967232 216916 996147200 134512640 135215973 4294956304 18446744073709551615 135095255 0 0 4096 0 0 0 0 17 1 0 0
/proc/19422/statm: 218742 216916 408 171 0 217667 0
Current children cumulated CPU time (s) 339.07
Current children cumulated vsize (KiB) 874968



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+362.201 s]
/proc/loadavg: 2.24 2.09 2.03 3/82 19429
/proc/meminfo: memFree=542752/2055920 swapFree=4192812/4192956
[pid=19422] ppid=19420 vsize=921804 CPUtime=358.78
/proc/19422/stat : 19422 (pcs.big) R 19420 19422 19183 0 -1 4194304 233511 656 0 0 35753 125 0 0 25 0 1 0 59756389 943927296 228791 996147200 134512640 135215973 4294956304 18446744073709551615 134583647 0 0 4096 0 0 0 0 17 1 0 0
/proc/19422/statm: 230451 228791 408 171 0 229376 0
Current children cumulated CPU time (s) 358.78
Current children cumulated vsize (KiB) 921804

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

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

[startup+362.307 s]
/proc/loadavg: 2.24 2.09 2.03 3/82 19429
/proc/meminfo: memFree=542752/2055920 swapFree=4192812/4192956
[pid=19422] ppid=19420 vsize=0 CPUtime=358.87
/proc/19422/stat : 19422 (pcs.big) R 19420 19422 19183 0 -1 4195332 233511 656 0 0 35753 134 0 0 25 0 1 0 59756389 0 0 996147200 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/19422/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 358.87
Current children cumulated vsize (KiB) 0

Child ended because it received signal 15 (SIGTERM)
Real time (s): 362.352
CPU time (s): 358.939
CPU user time (s): 357.539
CPU system time (s): 1.40079
CPU usage (%): 99.0583
Max. virtual memory (cumulated for all children) (KiB): 921804

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 357.539
system time used= 1.40079
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 234167
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= 14789

runsolver used 0.463929 second user time and 1.19482 second system time

The end

Launcher Data 

Begin job on node70 at 2009-07-16 08:48:57
IDJOB=2086905
IDBENCH=58658
IDSOLVER=733
FILE ID=node70/2086905-1247726937
PBS_JOBID= 9521559
Free space on /tmp= 66432 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/langford4/normalized-langford-4-30.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2086905-1247726937/watcher-2086905-1247726937 -o /tmp/evaluation-result-2086905-1247726937/solver-2086905-1247726937 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1271413936 HOME/instance-2086905-1247726937.xml

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

MD5SUM BENCH= 947fd10df4466df33806de675e63a7bd
RANDOM SEED=1271413936

node70.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		: 3000.214
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		: 3000.214
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:       1458952 kB
Buffers:         86112 kB
Cached:         374860 kB
SwapCached:          0 kB
Active:          99904 kB
Inactive:       416520 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1458952 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2780 kB
Writeback:           0 kB
Mapped:          75888 kB
Slab:            65796 kB
Committed_AS:   810236 kB
PageTables:       1892 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= 66428 MiB
End job on node70 at 2009-07-16 08:55:01