Trace number 2087543

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) 139.975 141.332

General information on the benchmark

Namecsp/queens/
normalized-queens-200.xml
MD5SUM054f76ffe13ea2991d6de6635966b938
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark16.2935
Satisfiable
(Un)Satisfiability was proved
Number of variables200
Number of constraints19900
Maximum constraint arity2
Maximum domain size200
Number of constraints which are defined in extension0
Number of constraints which are defined in intension19900
Global constraints used (with number of constraints)

Solver Data 

0.00/0.02	c has big domains
0.00/0.02	c big-domain mode
0.00/0.09	c Seed is 171967192
0.00/0.09	c Constructing HOME/instance-2087543-1247727786.xml 
1.45/1.56	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,V120,V121,V122,V123,V124,V125,V126,V127,V128,V129,V130,V131,V132,V133,V134,V135,V136,V137,V138,V139,V140,V141,V142,V143,V144,V145,V146,V147,V148,V149,V150,V151,V152,V153,V154,V155,V156,V157,V158,V159,V160,V161,V162,V163,V164,V165,V166,V167,V168,V169,V170,V171,V172,V173,V174,V175,V176,V177,V178,V179,V180,V181,V182,V183,V184,V185,V186,V187,V188,V189,V190,V191,V192,V193,V194,V195,V196,V197,V198,V199,V0)
1.45/1.56	c  with 79601 constraints
1.45/1.56	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-2087543-1247727786/watcher-2087543-1247727786 -o /tmp/evaluation-result-2087543-1247727786/solver-2087543-1247727786 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 171967192 HOME/instance-2087543-1247727786.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: 2.29 2.08 2.03 4/81 18772
/proc/meminfo: memFree=1432776/2055920 swapFree=4192812/4192956
[pid=18772] ppid=18770 vsize=18576 CPUtime=0
/proc/18772/stat : 18772 (runsolver) R 18770 18772 17638 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 59845011 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 238487661863 0 0 4096 24578 0 0 0 17 1 0 0
/proc/18772/statm: 4644 284 249 26 0 2626 0

[startup+0.224976 s]
/proc/loadavg: 2.29 2.08 2.03 4/81 18772
/proc/meminfo: memFree=1432776/2055920 swapFree=4192812/4192956
[pid=18772] ppid=18770 vsize=7488 CPUtime=0.19
/proc/18772/stat : 18772 (pcs.big) R 18770 18772 17638 0 -1 4194304 1636 656 0 0 19 0 0 0 19 0 1 0 59845011 7667712 1128 996147200 134512640 135215973 4294956304 18446744073709551615 4159337227 0 0 4096 0 0 0 0 17 1 0 0
/proc/18772/statm: 1872 1128 385 171 0 797 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 7488

[startup+0.302 s]
/proc/loadavg: 2.29 2.08 2.03 4/81 18772
/proc/meminfo: memFree=1432776/2055920 swapFree=4192812/4192956
[pid=18772] ppid=18770 vsize=9452 CPUtime=0.27
/proc/18772/stat : 18772 (pcs.big) R 18770 18772 17638 0 -1 4194304 2087 656 0 0 27 0 0 0 19 0 1 0 59845011 9678848 1477 996147200 134512640 135215973 4294956304 18446744073709551615 134911906 0 0 4096 0 0 0 0 17 1 0 0
/proc/18772/statm: 2363 1477 385 171 0 1288 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 9452

[startup+0.403018 s]
/proc/loadavg: 2.29 2.08 2.03 4/81 18772
/proc/meminfo: memFree=1432776/2055920 swapFree=4192812/4192956
[pid=18772] ppid=18770 vsize=10440 CPUtime=0.37
/proc/18772/stat : 18772 (pcs.big) R 18770 18772 17638 0 -1 4194304 2532 656 0 0 36 1 0 0 20 0 1 0 59845011 10690560 1712 996147200 134512640 135215973 4294956304 18446744073709551615 134583202 0 0 4096 0 0 0 0 17 1 0 0
/proc/18772/statm: 2610 1712 385 171 0 1535 0
Current children cumulated CPU time (s) 0.37
Current children cumulated vsize (KiB) 10440

[startup+0.701074 s]
/proc/loadavg: 2.29 2.08 2.03 4/81 18772
/proc/meminfo: memFree=1432776/2055920 swapFree=4192812/4192956
[pid=18772] ppid=18770 vsize=15864 CPUtime=0.66
/proc/18772/stat : 18772 (pcs.big) R 18770 18772 17638 0 -1 4194304 4207 656 0 0 65 1 0 0 23 0 1 0 59845011 16244736 2699 996147200 134512640 135215973 4294956304 18446744073709551615 134600373 0 0 4096 0 0 0 0 17 1 0 0
/proc/18772/statm: 3966 2699 385 171 0 2891 0
Current children cumulated CPU time (s) 0.66
Current children cumulated vsize (KiB) 15864

[startup+1.50223 s]
/proc/loadavg: 2.29 2.08 2.03 3/82 18777
/proc/meminfo: memFree=1417152/2055920 swapFree=4192812/4192956
[pid=18772] ppid=18770 vsize=27528 CPUtime=1.45
/proc/18772/stat : 18772 (pcs.big) R 18770 18772 17638 0 -1 4194304 8098 656 0 0 142 3 0 0 25 0 1 0 59845011 28188672 5154 996147200 134512640 135215973 4294956304 18446744073709551615 4158960659 0 0 4096 0 0 0 0 17 1 0 0
/proc/18772/statm: 6882 5154 385 171 0 5807 0
Current children cumulated CPU time (s) 1.45
Current children cumulated vsize (KiB) 27528

[startup+3.10154 s]
/proc/loadavg: 2.29 2.08 2.03 3/82 18777
/proc/meminfo: memFree=1398912/2055920 swapFree=4192812/4192956
[pid=18772] ppid=18770 vsize=58276 CPUtime=3.05
/proc/18772/stat : 18772 (pcs.big) R 18770 18772 17638 0 -1 4194304 19036 656 0 0 296 9 0 0 25 0 1 0 59845011 59674624 11849 996147200 134512640 135215973 4294956304 18446744073709551615 134739661 0 0 4096 0 0 0 0 17 1 0 0
/proc/18772/statm: 14569 11849 409 171 0 13494 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 58276

[startup+6.30216 s]
/proc/loadavg: 2.27 2.08 2.02 3/82 18777
/proc/meminfo: memFree=1361024/2055920 swapFree=4192812/4192956
[pid=18772] ppid=18770 vsize=90536 CPUtime=6.21
/proc/18772/stat : 18772 (pcs.big) R 18770 18772 17638 0 -1 4194304 30461 656 0 0 606 15 0 0 25 0 1 0 59845011 92708864 18809 996147200 134512640 135215973 4294956304 18446744073709551615 135097518 0 0 4096 0 0 0 0 17 1 0 0
/proc/18772/statm: 22634 18809 409 171 0 21559 0
Current children cumulated CPU time (s) 6.21
Current children cumulated vsize (KiB) 90536

[startup+12.7014 s]
/proc/loadavg: 2.25 2.08 2.02 3/82 18777
/proc/meminfo: memFree=1300480/2055920 swapFree=4192812/4192956
[pid=18772] ppid=18770 vsize=161288 CPUtime=12.55
/proc/18772/stat : 18772 (pcs.big) R 18770 18772 17638 0 -1 4194304 52044 656 0 0 1230 25 0 0 25 0 1 0 59845011 165158912 33422 996147200 134512640 135215973 4294956304 18446744073709551615 134590075 0 0 4096 0 0 0 0 17 1 0 0
/proc/18772/statm: 40322 33422 409 171 0 39247 0
Current children cumulated CPU time (s) 12.55
Current children cumulated vsize (KiB) 161288

[startup+25.5069 s]
/proc/loadavg: 2.19 2.08 2.02 3/82 18777
/proc/meminfo: memFree=1266368/2055920 swapFree=4192812/4192956
[pid=18772] ppid=18770 vsize=179252 CPUtime=25.23
/proc/18772/stat : 18772 (pcs.big) R 18770 18772 17638 0 -1 4194304 60898 656 0 0 2494 29 0 0 25 0 1 0 59845011 183554048 41903 996147200 134512640 135215973 4294956304 18446744073709551615 134590052 0 0 4096 0 0 0 0 17 1 0 0
/proc/18772/statm: 44813 41903 409 171 0 43738 0
Current children cumulated CPU time (s) 25.23
Current children cumulated vsize (KiB) 179252

[startup+51.1018 s]
/proc/loadavg: 2.13 2.07 2.02 3/82 18777
/proc/meminfo: memFree=1106176/2055920 swapFree=4192812/4192956
[pid=18772] ppid=18770 vsize=374276 CPUtime=50.58
/proc/18772/stat : 18772 (pcs.big) R 18770 18772 17638 0 -1 4194304 114541 656 0 0 5006 52 0 0 25 0 1 0 59845011 383258624 81858 996147200 134512640 135215973 4294956304 18446744073709551615 135094972 0 0 4096 0 0 0 0 17 1 0 0
/proc/18772/statm: 93569 81858 409 171 0 92494 0
Current children cumulated CPU time (s) 50.58
Current children cumulated vsize (KiB) 374276

[startup+102.302 s]
/proc/loadavg: 2.05 2.06 2.02 3/82 18777
/proc/meminfo: memFree=976000/2055920 swapFree=4192812/4192956
[pid=18772] ppid=18770 vsize=485928 CPUtime=101.29
/proc/18772/stat : 18772 (pcs.big) R 18770 18772 17638 0 -1 4194304 149268 656 0 0 10059 70 0 0 25 0 1 0 59845011 497590272 116262 996147200 134512640 135215973 4294956304 18446744073709551615 134597390 0 0 4096 0 0 0 0 17 1 0 0
/proc/18772/statm: 121482 116262 409 171 0 120407 0
Current children cumulated CPU time (s) 101.29
Current children cumulated vsize (KiB) 485928



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+141.201 s]
/proc/loadavg: 2.14 2.08 2.02 3/82 18777
/proc/meminfo: memFree=674304/2055920 swapFree=4192812/4192956
[pid=18772] ppid=18770 vsize=928144 CPUtime=139.82
/proc/18772/stat : 18772 (pcs.big) R 18770 18772 17638 0 -1 4194304 222650 656 0 0 13879 103 0 0 25 0 1 0 59845011 950419456 189536 996147200 134512640 135215973 4294956304 18446744073709551615 2930299 0 0 4096 0 0 0 0 17 1 0 0
/proc/18772/statm: 232036 189536 409 171 0 230961 0
Current children cumulated CPU time (s) 139.82
Current children cumulated vsize (KiB) 928144

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

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

[startup+141.307 s]
/proc/loadavg: 2.14 2.08 2.02 3/82 18777
/proc/meminfo: memFree=674304/2055920 swapFree=4192812/4192956
[pid=18772] ppid=18770 vsize=0 CPUtime=139.92
/proc/18772/stat : 18772 (pcs.big) R 18770 18772 17638 0 -1 4195332 222650 656 0 0 13879 113 0 0 25 0 1 0 59845011 0 0 996147200 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/18772/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 139.92
Current children cumulated vsize (KiB) 0

Child ended because it received signal 15 (SIGTERM)
Real time (s): 141.332
CPU time (s): 139.975
CPU user time (s): 138.801
CPU system time (s): 1.17382
CPU usage (%): 99.0399
Max. virtual memory (cumulated for all children) (KiB): 928144

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 138.801
system time used= 1.17382
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 223306
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= 20
involuntary context switches= 5693

runsolver used 0.200969 second user time and 0.452931 second system time

The end

Launcher Data 

Begin job on node23 at 2009-07-16 09:03:06
IDJOB=2087543
IDBENCH=58738
IDSOLVER=733
FILE ID=node23/2087543-1247727786
PBS_JOBID= 9521586
Free space on /tmp= 66392 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/queens/normalized-queens-200.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2087543-1247727786/watcher-2087543-1247727786 -o /tmp/evaluation-result-2087543-1247727786/solver-2087543-1247727786 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 171967192 HOME/instance-2087543-1247727786.xml

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

MD5SUM BENCH= 054f76ffe13ea2991d6de6635966b938
RANDOM SEED=171967192

node23.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		: 3000.277
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		: 3000.277
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:       1433256 kB
Buffers:         87624 kB
Cached:         355124 kB
SwapCached:          0 kB
Active:         151992 kB
Inactive:       391372 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1433256 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            4928 kB
Writeback:           0 kB
Mapped:         120940 kB
Slab:            64328 kB
Committed_AS:   614016 kB
PageTables:       2008 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= 66388 MiB
End job on node23 at 2009-07-16 09:05:29