Trace number 2086872

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) 381.335 382.845

General information on the benchmark

Namecsp/langford4/
normalized-langford-4-20.xml
MD5SUMd7708ecaa4b0e9b8ee6812bd6eefd125
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 variables80
Number of constraints3220
Maximum constraint arity2
Maximum domain size80
Number of constraints which are defined in extension0
Number of constraints which are defined in intension3220
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 1403196726
0.18/0.20	c Constructing HOME/instance-2086872-1247726899.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,V0)
0.18/0.20	c  with 3221 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-2086872-1247726899/watcher-2086872-1247726899 -o /tmp/evaluation-result-2086872-1247726899/solver-2086872-1247726899 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1403196726 HOME/instance-2086872-1247726899.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: 1.97 1.98 1.99 4/73 16786
/proc/meminfo: memFree=1474576/2055920 swapFree=4192812/4192956
[pid=16786] ppid=16784 vsize=5356 CPUtime=0
/proc/16786/stat : 16786 (pcssolve) R 16784 16786 16749 0 -1 4194304 273 0 0 0 0 0 0 0 20 0 1 0 59755533 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 234045893279 0 65538 4100 65536 0 0 0 17 0 0 0
/proc/16786/statm: 1339 241 200 169 0 50 0
[pid=16787] ppid=16786 vsize=5356 CPUtime=0
/proc/16787/stat : 16787 (pcssolve) R 16786 16786 16749 0 -1 4194368 0 0 0 0 0 0 0 0 20 0 1 0 59755533 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 234045893279 0 65538 4100 65536 0 0 0 17 0 0 0
/proc/16787/statm: 1339 241 200 169 0 50 0

[startup+0.070435 s]
/proc/loadavg: 1.97 1.98 1.99 4/73 16786
/proc/meminfo: memFree=1474576/2055920 swapFree=4192812/4192956
[pid=16786] ppid=16784 vsize=4812 CPUtime=0.05
/proc/16786/stat : 16786 (pcs.big) R 16784 16786 16749 0 -1 4194304 887 656 0 0 5 0 0 0 18 0 1 0 59755533 4927488 518 996147200 134512640 135215973 4294956304 18446744073709551615 134773306 0 0 4096 0 0 0 0 17 1 0 0
/proc/16786/statm: 1203 518 384 171 0 128 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 4812

[startup+0.101434 s]
/proc/loadavg: 1.97 1.98 1.99 4/73 16786
/proc/meminfo: memFree=1474576/2055920 swapFree=4192812/4192956
[pid=16786] ppid=16784 vsize=5076 CPUtime=0.08
/proc/16786/stat : 16786 (pcs.big) R 16784 16786 16749 0 -1 4194304 933 656 0 0 8 0 0 0 18 0 1 0 59755533 5197824 564 996147200 134512640 135215973 4294956304 18446744073709551615 134899195 0 0 4096 0 0 0 0 17 1 0 0
/proc/16786/statm: 1269 564 384 171 0 194 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5076

[startup+0.301459 s]
/proc/loadavg: 1.97 1.98 1.99 4/73 16786
/proc/meminfo: memFree=1474576/2055920 swapFree=4192812/4192956
[pid=16786] ppid=16784 vsize=6448 CPUtime=0.28
/proc/16786/stat : 16786 (pcs.big) R 16784 16786 16749 0 -1 4194304 1290 656 0 0 28 0 0 0 19 0 1 0 59755533 6602752 921 996147200 134512640 135215973 4294956304 18446744073709551615 134944297 0 0 4096 0 0 0 0 17 1 0 0
/proc/16786/statm: 1612 921 409 171 0 537 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 6448

[startup+0.701507 s]
/proc/loadavg: 1.97 1.98 1.99 4/73 16786
/proc/meminfo: memFree=1474576/2055920 swapFree=4192812/4192956
[pid=16786] ppid=16784 vsize=6976 CPUtime=0.68
/proc/16786/stat : 16786 (pcs.big) R 16784 16786 16749 0 -1 4194304 1419 656 0 0 68 0 0 0 23 0 1 0 59755533 7143424 1050 996147200 134512640 135215973 4294956304 18446744073709551615 134585741 0 0 4096 0 0 0 0 17 1 0 0
/proc/16786/statm: 1744 1050 409 171 0 669 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 6976

[startup+1.50159 s]
/proc/loadavg: 1.97 1.98 1.99 3/74 16791
/proc/meminfo: memFree=1471048/2055920 swapFree=4192812/4192956
[pid=16786] ppid=16784 vsize=9064 CPUtime=1.48
/proc/16786/stat : 16786 (pcs.big) R 16784 16786 16749 0 -1 4194304 1912 656 0 0 147 1 0 0 25 0 1 0 59755533 9281536 1543 996147200 134512640 135215973 4294956304 18446744073709551615 134532656 0 0 4096 0 0 0 0 17 1 0 0
/proc/16786/statm: 2266 1543 409 171 0 1191 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 9064

[startup+3.10176 s]
/proc/loadavg: 1.97 1.98 1.99 3/74 16791
/proc/meminfo: memFree=1468040/2055920 swapFree=4192812/4192956
[pid=16786] ppid=16784 vsize=12724 CPUtime=3.07
/proc/16786/stat : 16786 (pcs.big) R 16784 16786 16749 0 -1 4194304 2869 656 0 0 306 1 0 0 25 0 1 0 59755533 13029376 2467 996147200 134512640 135215973 4294956304 18446744073709551615 134599858 0 0 4096 0 0 0 0 17 1 0 0
/proc/16786/statm: 3181 2467 409 171 0 2106 0
Current children cumulated CPU time (s) 3.07
Current children cumulated vsize (KiB) 12724

[startup+6.30109 s]
/proc/loadavg: 1.97 1.98 1.99 3/74 16791
/proc/meminfo: memFree=1459080/2055920 swapFree=4192812/4192956
[pid=16786] ppid=16784 vsize=21292 CPUtime=6.26
/proc/16786/stat : 16786 (pcs.big) R 16784 16786 16749 0 -1 4194304 5049 656 0 0 623 3 0 0 25 0 1 0 59755533 21803008 4582 996147200 134512640 135215973 4294956304 18446744073709551615 4158960578 0 0 4096 0 0 0 0 17 1 0 0
/proc/16786/statm: 5323 4582 409 171 0 4248 0
Current children cumulated CPU time (s) 6.26
Current children cumulated vsize (KiB) 21292

[startup+12.7028 s]
/proc/loadavg: 1.97 1.98 1.99 3/74 16791
/proc/meminfo: memFree=1442568/2055920 swapFree=4192812/4192956
[pid=16786] ppid=16784 vsize=36656 CPUtime=12.63
/proc/16786/stat : 16786 (pcs.big) R 16784 16786 16749 0 -1 4194304 8984 656 0 0 1258 5 0 0 25 0 1 0 59755533 37535744 8355 996147200 134512640 135215973 4294956304 18446744073709551615 134585388 0 0 4096 0 0 0 0 17 1 0 0
/proc/16786/statm: 9164 8355 409 171 0 8089 0
Current children cumulated CPU time (s) 12.63
Current children cumulated vsize (KiB) 36656

[startup+25.5011 s]
/proc/loadavg: 1.98 1.98 1.99 3/74 16791
/proc/meminfo: memFree=1406664/2055920 swapFree=4192812/4192956
[pid=16786] ppid=16784 vsize=69672 CPUtime=25.38
/proc/16786/stat : 16786 (pcs.big) R 16784 16786 16749 0 -1 4194304 17419 656 0 0 2529 9 0 0 25 0 1 0 59755533 71344128 16533 996147200 134512640 135215973 4294956304 18446744073709551615 134600705 0 0 4096 0 0 0 0 17 1 0 0
/proc/16786/statm: 17418 16533 409 171 0 16343 0
Current children cumulated CPU time (s) 25.38
Current children cumulated vsize (KiB) 69672

[startup+51.1018 s]
/proc/loadavg: 1.98 1.98 1.99 3/74 16791
/proc/meminfo: memFree=1337992/2055920 swapFree=4192812/4192956
[pid=16786] ppid=16784 vsize=135816 CPUtime=50.87
/proc/16786/stat : 16786 (pcs.big) R 16784 16786 16749 0 -1 4194304 34346 656 0 0 5070 17 0 0 25 0 1 0 59755533 139075584 32882 996147200 134512640 135215973 4294956304 18446744073709551615 134631995 0 0 4096 0 0 0 0 17 1 0 0
/proc/16786/statm: 33954 32882 409 171 0 32879 0
Current children cumulated CPU time (s) 50.87
Current children cumulated vsize (KiB) 135816

[startup+102.306 s]
/proc/loadavg: 1.99 1.98 1.99 3/74 16791
/proc/meminfo: memFree=1201608/2055920 swapFree=4192812/4192956
[pid=16786] ppid=16784 vsize=265584 CPUtime=101.88
/proc/16786/stat : 16786 (pcs.big) R 16784 16786 16749 0 -1 4194304 67474 656 0 0 10154 34 0 0 25 0 1 0 59755533 271958016 64856 996147200 134512640 135215973 4294956304 18446744073709551615 134739666 0 0 4096 0 0 0 0 17 1 0 0
/proc/16786/statm: 66396 64856 409 171 0 65321 0
Current children cumulated CPU time (s) 101.88
Current children cumulated vsize (KiB) 265584

[startup+162.301 s]
/proc/loadavg: 1.99 1.98 1.99 3/74 16791
/proc/meminfo: memFree=1040200/2055920 swapFree=4192812/4192956
[pid=16786] ppid=16784 vsize=421532 CPUtime=161.64
/proc/16786/stat : 16786 (pcs.big) R 16784 16786 16749 0 -1 4194304 107293 656 0 0 16110 54 0 0 25 0 1 0 59755533 431648768 102626 996147200 134512640 135215973 4294956304 18446744073709551615 134932271 0 0 4096 0 0 0 0 17 1 0 0
/proc/16786/statm: 105383 102626 409 171 0 104308 0
Current children cumulated CPU time (s) 161.64
Current children cumulated vsize (KiB) 421532

[startup+222.302 s]
/proc/loadavg: 1.99 1.98 1.99 3/74 16793
/proc/meminfo: memFree=891976/2055920 swapFree=4192812/4192956
[pid=16786] ppid=16784 vsize=557452 CPUtime=221.41
/proc/16786/stat : 16786 (pcs.big) R 16784 16786 16749 0 -1 4194304 142097 656 0 0 22068 73 0 0 25 0 1 0 59755533 570830848 137430 996147200 134512640 135215973 4294956304 18446744073709551615 134553746 0 0 4096 0 0 0 0 17 1 0 0
/proc/16786/statm: 139363 137430 409 171 0 138288 0
Current children cumulated CPU time (s) 221.41
Current children cumulated vsize (KiB) 557452

[startup+282.301 s]
/proc/loadavg: 1.99 1.98 1.99 3/74 16793
/proc/meminfo: memFree=750856/2055920 swapFree=4192812/4192956
[pid=16786] ppid=16784 vsize=689076 CPUtime=281.17
/proc/16786/stat : 16786 (pcs.big) R 16784 16786 16749 0 -1 4194304 175812 656 0 0 28028 89 0 0 25 0 1 0 59755533 705613824 170888 996147200 134512640 135215973 4294956304 18446744073709551615 134599834 0 0 4096 0 0 0 0 17 1 0 0
/proc/16786/statm: 172269 170888 409 171 0 171194 0
Current children cumulated CPU time (s) 281.17
Current children cumulated vsize (KiB) 689076

[startup+342.301 s]
/proc/loadavg: 1.99 1.98 1.99 3/74 16793
/proc/meminfo: memFree=607944/2055920 swapFree=4192812/4192956
[pid=16786] ppid=16784 vsize=835564 CPUtime=340.94
/proc/16786/stat : 16786 (pcs.big) R 16784 16786 16749 0 -1 4194304 213233 656 0 0 33985 109 0 0 25 0 1 0 59755533 855617536 204212 996147200 134512640 135215973 4294956304 18446744073709551615 134588337 0 0 4096 0 0 0 0 17 1 0 0
/proc/16786/statm: 208891 204212 409 171 0 207816 0
Current children cumulated CPU time (s) 340.94
Current children cumulated vsize (KiB) 835564



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+382.702 s]
/proc/loadavg: 1.99 1.98 1.99 3/74 16793
/proc/meminfo: memFree=513480/2055920 swapFree=4192812/4192956
[pid=16786] ppid=16784 vsize=921632 CPUtime=381.18
/proc/16786/stat : 16786 (pcs.big) R 16784 16786 16749 0 -1 4194304 235293 656 0 0 38000 118 0 0 25 0 1 0 59755533 943751168 226272 996147200 134512640 135215973 4294956304 18446744073709551615 134583868 0 0 4096 0 0 0 0 17 1 0 0
/proc/16786/statm: 230408 226272 409 171 0 229333 0
Current children cumulated CPU time (s) 381.18
Current children cumulated vsize (KiB) 921632

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

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

[startup+382.811 s]
/proc/loadavg: 1.99 1.98 1.99 3/74 16793
/proc/meminfo: memFree=513480/2055920 swapFree=4192812/4192956
[pid=16786] ppid=16784 vsize=0 CPUtime=381.28
/proc/16786/stat : 16786 (pcs.big) R 16784 16786 16749 0 -1 4195332 235293 656 0 0 38000 128 0 0 25 0 1 0 59755533 0 0 996147200 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/16786/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 381.28
Current children cumulated vsize (KiB) 0

Child ended because it received signal 15 (SIGTERM)
Real time (s): 382.845
CPU time (s): 381.335
CPU user time (s): 380.008
CPU system time (s): 1.3268
CPU usage (%): 99.6055
Max. virtual memory (cumulated for all children) (KiB): 921632

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 380.008
system time used= 1.3268
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 235949
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= 11
involuntary context switches= 4175

runsolver used 0.362944 second user time and 1.04784 second system time

The end

Launcher Data 

Begin job on node79 at 2009-07-16 08:48:20
IDJOB=2086872
IDBENCH=58654
IDSOLVER=733
FILE ID=node79/2086872-1247726899
PBS_JOBID= 9521634
Free space on /tmp= 66388 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/langford4/normalized-langford-4-20.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2086872-1247726899/watcher-2086872-1247726899 -o /tmp/evaluation-result-2086872-1247726899/solver-2086872-1247726899 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1403196726 HOME/instance-2086872-1247726899.xml

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

MD5SUM BENCH= d7708ecaa4b0e9b8ee6812bd6eefd125
RANDOM SEED=1403196726

node79.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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1475056 kB
Buffers:         84760 kB
Cached:         345544 kB
SwapCached:          0 kB
Active:         104012 kB
Inactive:       385944 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1475056 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2280 kB
Writeback:           0 kB
Mapped:          71108 kB
Slab:            76244 kB
Committed_AS:   573916 kB
PageTables:       1840 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= 66384 MiB
End job on node79 at 2009-07-16 08:54:44