Trace number 2086873

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 0.3.2? (MO) 421.848 425.858

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
0.00/0.17	c Seed is 1452616582
0.00/0.17	c Constructing HOME/instance-2086873-1247726907.xml 
0.00/0.17	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)
0.00/0.17	c  with 3221 constraints
0.00/0.17	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-2086873-1247726907/watcher-2086873-1247726907 -o /tmp/evaluation-result-2086873-1247726907/solver-2086873-1247726907 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1452616582 HOME/instance-2086873-1247726907.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: 2.00 2.00 2.00 4/81 17161
/proc/meminfo: memFree=1450120/2055920 swapFree=4192812/4192956
[pid=17161] ppid=17159 vsize=5356 CPUtime=0
/proc/17161/stat : 17161 (pcssolve) R 17159 17161 16997 0 -1 4194304 265 0 0 0 0 0 0 0 20 0 1 0 59757305 5484544 233 996147200 4194304 4889804 548682068800 18446744073709551615 4318944 0 0 4100 65536 0 0 0 17 1 0 0
/proc/17161/statm: 1339 233 194 169 0 50 0

[startup+0.208901 s]
/proc/loadavg: 2.00 2.00 2.00 4/81 17161
/proc/meminfo: memFree=1450120/2055920 swapFree=4192812/4192956
[pid=17161] ppid=17159 vsize=6572 CPUtime=0.18
/proc/17161/stat : 17161 (pcs.big) R 17159 17161 16997 0 -1 4194304 1329 656 0 0 18 0 0 0 19 0 1 0 59757305 6729728 960 996147200 134512640 135215973 4294956304 18446744073709551615 134917380 0 0 4096 0 0 0 0 17 1 0 0
/proc/17161/statm: 1643 960 409 171 0 568 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 6572

[startup+0.302908 s]
/proc/loadavg: 2.00 2.00 2.00 4/81 17161
/proc/meminfo: memFree=1450120/2055920 swapFree=4192812/4192956
[pid=17161] ppid=17159 vsize=6572 CPUtime=0.28
/proc/17161/stat : 17161 (pcs.big) R 17159 17161 16997 0 -1 4194304 1329 656 0 0 28 0 0 0 19 0 1 0 59757305 6729728 960 996147200 134512640 135215973 4294956304 18446744073709551615 134599858 0 0 4096 0 0 0 0 17 1 0 0
/proc/17161/statm: 1643 960 409 171 0 568 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 6572

[startup+0.402917 s]
/proc/loadavg: 2.00 2.00 2.00 4/81 17161
/proc/meminfo: memFree=1450120/2055920 swapFree=4192812/4192956
[pid=17161] ppid=17159 vsize=6572 CPUtime=0.38
/proc/17161/stat : 17161 (pcs.big) R 17159 17161 16997 0 -1 4194304 1329 656 0 0 38 0 0 0 20 0 1 0 59757305 6729728 960 996147200 134512640 135215973 4294956304 18446744073709551615 4158960021 0 0 4096 0 0 0 0 17 1 0 0
/proc/17161/statm: 1643 960 409 171 0 568 0
Current children cumulated CPU time (s) 0.38
Current children cumulated vsize (KiB) 6572

[startup+0.702951 s]
/proc/loadavg: 2.00 2.00 2.00 4/81 17161
/proc/meminfo: memFree=1450120/2055920 swapFree=4192812/4192956
[pid=17161] ppid=17159 vsize=7104 CPUtime=0.67
/proc/17161/stat : 17161 (pcs.big) R 17159 17161 16997 0 -1 4194304 1459 656 0 0 67 0 0 0 23 0 1 0 59757305 7274496 1090 996147200 134512640 135215973 4294956304 18446744073709551615 134590055 0 0 4096 0 0 0 0 17 1 0 0
/proc/17161/statm: 1776 1090 409 171 0 701 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 7104

[startup+1.50104 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 17166
/proc/meminfo: memFree=1446208/2055920 swapFree=4192812/4192956
[pid=17161] ppid=17159 vsize=8808 CPUtime=1.46
/proc/17161/stat : 17161 (pcs.big) R 17159 17161 16997 0 -1 4194304 1890 656 0 0 146 0 0 0 25 0 1 0 59757305 9019392 1521 996147200 134512640 135215973 4294956304 18446744073709551615 134590052 0 0 4096 0 0 0 0 17 1 0 0
/proc/17161/statm: 2202 1521 409 171 0 1127 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 8808

[startup+3.10121 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 17166
/proc/meminfo: memFree=1443904/2055920 swapFree=4192812/4192956
[pid=17161] ppid=17159 vsize=12616 CPUtime=3.05
/proc/17161/stat : 17161 (pcs.big) R 17159 17161 16997 0 -1 4194304 2841 656 0 0 304 1 0 0 25 0 1 0 59757305 12918784 2439 996147200 134512640 135215973 4294956304 18446744073709551615 4158960060 0 0 4096 0 0 0 0 17 1 0 0
/proc/17161/statm: 3154 2439 409 171 0 2079 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 12616

[startup+6.30155 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 17166
/proc/meminfo: memFree=1435392/2055920 swapFree=4192812/4192956
[pid=17161] ppid=17159 vsize=20568 CPUtime=6.22
/proc/17161/stat : 17161 (pcs.big) R 17159 17161 16997 0 -1 4194304 4876 656 0 0 620 2 0 0 25 0 1 0 59757305 21061632 4409 996147200 134512640 135215973 4294956304 18446744073709551615 134600790 0 0 4096 0 0 0 0 17 1 0 0
/proc/17161/statm: 5142 4409 409 171 0 4067 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 20568

[startup+12.7012 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 17166
/proc/meminfo: memFree=1420416/2055920 swapFree=4192812/4192956
[pid=17161] ppid=17159 vsize=35296 CPUtime=12.56
/proc/17161/stat : 17161 (pcs.big) R 17159 17161 16997 0 -1 4194304 8648 656 0 0 1251 5 0 0 25 0 1 0 59757305 36143104 8019 996147200 134512640 135215973 4294956304 18446744073709551615 134599863 0 0 4096 0 0 0 0 17 1 0 0
/proc/17161/statm: 8824 8019 409 171 0 7749 0
Current children cumulated CPU time (s) 12.56
Current children cumulated vsize (KiB) 35296

[startup+25.5066 s]
/proc/loadavg: 2.08 2.02 2.01 3/82 17166
/proc/meminfo: memFree=1388928/2055920 swapFree=4192812/4192956
[pid=17161] ppid=17159 vsize=66228 CPUtime=25.25
/proc/17161/stat : 17161 (pcs.big) R 17159 17161 16997 0 -1 4194304 16542 656 0 0 2516 9 0 0 25 0 1 0 59757305 67817472 15656 996147200 134512640 135215973 4294956304 18446744073709551615 134596221 0 0 4096 0 0 0 0 17 1 0 0
/proc/17161/statm: 16557 15656 409 171 0 15482 0
Current children cumulated CPU time (s) 25.25
Current children cumulated vsize (KiB) 66228

[startup+51.1014 s]
/proc/loadavg: 2.05 2.01 2.00 3/82 17166
/proc/meminfo: memFree=1330496/2055920 swapFree=4192812/4192956
[pid=17161] ppid=17159 vsize=126276 CPUtime=50.6
/proc/17161/stat : 17161 (pcs.big) R 17159 17161 16997 0 -1 4194304 31888 656 0 0 5046 14 0 0 25 0 1 0 59757305 129306624 30424 996147200 134512640 135215973 4294956304 18446744073709551615 134599868 0 0 4096 0 0 0 0 17 1 0 0
/proc/17161/statm: 31569 30424 409 171 0 30494 0
Current children cumulated CPU time (s) 50.6
Current children cumulated vsize (KiB) 126276

[startup+102.302 s]
/proc/loadavg: 2.07 2.03 2.00 3/82 17166
/proc/meminfo: memFree=1215872/2055920 swapFree=4192812/4192956
[pid=17161] ppid=17159 vsize=243136 CPUtime=101.32
/proc/17161/stat : 17161 (pcs.big) R 17159 17161 16997 0 -1 4194304 61794 656 0 0 10103 29 0 0 25 0 1 0 59757305 248971264 59305 996147200 134512640 135215973 4294956304 18446744073709551615 134591235 0 0 4096 0 0 0 0 17 1 0 0
/proc/17161/statm: 60784 59305 409 171 0 59709 0
Current children cumulated CPU time (s) 101.32
Current children cumulated vsize (KiB) 243136

[startup+162.301 s]
/proc/loadavg: 2.07 2.03 2.00 3/82 17166
/proc/meminfo: memFree=1077952/2055920 swapFree=4192812/4192956
[pid=17161] ppid=17159 vsize=377496 CPUtime=160.75
/proc/17161/stat : 17161 (pcs.big) R 17159 17161 16997 0 -1 4194304 96096 656 0 0 16028 47 0 0 25 0 1 0 59757305 386555904 93478 996147200 134512640 135215973 4294956304 18446744073709551615 134902041 0 0 4096 0 0 0 0 17 1 0 0
/proc/17161/statm: 94374 93478 409 171 0 93299 0
Current children cumulated CPU time (s) 160.75
Current children cumulated vsize (KiB) 377496

[startup+222.303 s]
/proc/loadavg: 2.07 2.04 2.00 3/82 17168
/proc/meminfo: memFree=951872/2055920 swapFree=4192812/4192956
[pid=17161] ppid=17159 vsize=507264 CPUtime=220.19
/proc/17161/stat : 17161 (pcs.big) R 17159 17161 16997 0 -1 4194304 129289 656 0 0 21955 64 0 0 25 0 1 0 59757305 519438336 124622 996147200 134512640 135215973 4294956304 18446744073709551615 134583656 0 0 4096 0 0 0 0 17 1 0 0
/proc/17161/statm: 126816 124622 409 171 0 125741 0
Current children cumulated CPU time (s) 220.19
Current children cumulated vsize (KiB) 507264

[startup+282.301 s]
/proc/loadavg: 2.06 2.04 2.00 3/82 17168
/proc/meminfo: memFree=828160/2055920 swapFree=4192812/4192956
[pid=17161] ppid=17159 vsize=629860 CPUtime=279.63
/proc/17161/stat : 17161 (pcs.big) R 17159 17161 16997 0 -1 4194304 160687 656 0 0 27884 79 0 0 25 0 1 0 59757305 644976640 155763 996147200 134512640 135215973 4294956304 18446744073709551615 134585720 0 0 4096 0 0 0 0 17 1 0 0
/proc/17161/statm: 157465 155763 409 171 0 156390 0
Current children cumulated CPU time (s) 279.63
Current children cumulated vsize (KiB) 629860

[startup+342.307 s]
/proc/loadavg: 2.12 2.06 2.01 3/82 17168
/proc/meminfo: memFree=709192/2055920 swapFree=4192812/4192956
[pid=17161] ppid=17159 vsize=744776 CPUtime=339.07
/proc/17161/stat : 17161 (pcs.big) R 17159 17161 16997 0 -1 4194304 190155 656 0 0 33812 95 0 0 25 0 1 0 59757305 762650624 185231 996147200 134512640 135215973 4294956304 18446744073709551615 134677926 0 0 4096 0 0 0 0 17 1 0 0
/proc/17161/statm: 186194 185231 409 171 0 185119 0
Current children cumulated CPU time (s) 339.07
Current children cumulated vsize (KiB) 744776

[startup+402.302 s]
/proc/loadavg: 2.14 2.08 2.01 3/82 17168
/proc/meminfo: memFree=591048/2055920 swapFree=4192812/4192956
[pid=17161] ppid=17159 vsize=877300 CPUtime=398.51
/proc/17161/stat : 17161 (pcs.big) R 17159 17161 16997 0 -1 4194304 224035 656 0 0 39737 114 0 0 25 0 1 0 59757305 898355200 215014 996147200 134512640 135215973 4294956304 18446744073709551615 4158960045 0 0 4096 0 0 0 0 17 1 0 0
/proc/17161/statm: 219325 215014 409 171 0 218250 0
Current children cumulated CPU time (s) 398.51
Current children cumulated vsize (KiB) 877300



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+425.702 s]
/proc/loadavg: 2.23 2.10 2.02 3/82 17168
/proc/meminfo: memFree=544072/2055920 swapFree=4192812/4192956
[pid=17161] ppid=17159 vsize=921768 CPUtime=421.69
/proc/17161/stat : 17161 (pcs.big) R 17159 17161 16997 0 -1 4194304 235434 656 0 0 42049 120 0 0 25 0 1 0 59757305 943890432 226413 996147200 134512640 135215973 4294956304 18446744073709551615 134922417 0 0 4096 0 0 0 0 17 1 0 0
/proc/17161/statm: 230442 226413 409 171 0 229367 0
Current children cumulated CPU time (s) 421.69
Current children cumulated vsize (KiB) 921768

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

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

[startup+425.808 s]
/proc/loadavg: 2.23 2.10 2.02 3/83 17169
/proc/meminfo: memFree=1164352/2055920 swapFree=4192812/4192956
[pid=17161] ppid=17159 vsize=0 CPUtime=421.79
/proc/17161/stat : 17161 (pcs.big) R 17159 17161 16997 0 -1 4195332 235434 656 0 0 42049 130 0 0 25 0 1 0 59757305 0 0 996147200 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/17161/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 421.79
Current children cumulated vsize (KiB) 0

Child ended because it received signal 15 (SIGTERM)
Real time (s): 425.858
CPU time (s): 421.848
CPU user time (s): 420.5
CPU system time (s): 1.3478
CPU usage (%): 99.0582
Max. virtual memory (cumulated for all children) (KiB): 921768

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 420.5
system time used= 1.3478
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 236090
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= 17485

runsolver used 0.487925 second user time and 1.46178 second system time

The end

Launcher Data 

Begin job on node19 at 2009-07-16 08:48:27
IDJOB=2086873
IDBENCH=58654
IDSOLVER=734
FILE ID=node19/2086873-1247726907
PBS_JOBID= 9521555
Free space on /tmp= 66392 MiB

SOLVER NAME= pcs-restart 0.2.restart
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-2086873-1247726907/watcher-2086873-1247726907 -o /tmp/evaluation-result-2086873-1247726907/solver-2086873-1247726907 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1452616582 HOME/instance-2086873-1247726907.xml

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

MD5SUM BENCH= d7708ecaa4b0e9b8ee6812bd6eefd125
RANDOM SEED=1452616582

node19.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		: 3000.211
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		: 3000.211
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:       1450600 kB
Buffers:         74048 kB
Cached:         411404 kB
SwapCached:          0 kB
Active:         108004 kB
Inactive:       428784 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1450600 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2112 kB
Writeback:           0 kB
Mapped:          71776 kB
Slab:            53560 kB
Committed_AS:   636500 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= 66392 MiB
End job on node19 at 2009-07-16 08:55:34