Trace number 2086883

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) 391.736 395.458

General information on the benchmark

Namecsp/langford4/
normalized-langford-4-25.xml
MD5SUMf28667d5c0e930a5c10077f974b3889b
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 variables100
Number of constraints5025
Maximum constraint arity2
Maximum domain size100
Number of constraints which are defined in extension0
Number of constraints which are defined in intension5025
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 197259531
0.00/0.02	c Constructing HOME/instance-2086883-1247726911.xml 
0.08/0.19	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,V0)
0.08/0.19	c  with 5026 constraints
0.08/0.19	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-2086883-1247726911/watcher-2086883-1247726911 -o /tmp/evaluation-result-2086883-1247726911/solver-2086883-1247726911 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 197259531 HOME/instance-2086883-1247726911.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: 2.06 2.01 2.00 4/81 21042
/proc/meminfo: memFree=1567888/2055920 swapFree=4192812/4192956
[pid=21042] ppid=21040 vsize=5212 CPUtime=0
/proc/21042/stat : 21042 (pcssolve) R 21040 21042 20592 0 -1 4194304 69 0 0 0 0 0 0 0 20 0 1 0 59753872 5337088 43 996147200 4194304 4889804 548682068800 18446744073709551615 271635773529 0 0 4096 0 0 0 0 17 1 0 0
/proc/21042/statm: 1303 43 29 169 0 14 0

[startup+0.0207111 s]
/proc/loadavg: 2.06 2.01 2.00 4/81 21042
/proc/meminfo: memFree=1567888/2055920 swapFree=4192812/4192956
[pid=21042] ppid=21040 vsize=4404 CPUtime=0
/proc/21042/stat : 21042 (pcs.big) R 21040 21042 20592 0 -1 4194304 511 656 0 0 0 0 0 0 23 0 1 0 59753872 4509696 155 996147200 134512640 135215973 4294956304 18446744073709551615 6859749 0 0 4096 0 0 0 0 17 1 0 0
/proc/21042/statm: 1101 155 134 171 0 14 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 4404

[startup+0.101719 s]
/proc/loadavg: 2.06 2.01 2.00 4/81 21042
/proc/meminfo: memFree=1567888/2055920 swapFree=4192812/4192956
[pid=21042] ppid=21040 vsize=5084 CPUtime=0.08
/proc/21042/stat : 21042 (pcs.big) R 21040 21042 20592 0 -1 4194304 929 656 0 0 8 0 0 0 23 0 1 0 59753872 5206016 560 996147200 134512640 135215973 4294956304 18446744073709551615 4159751757 0 0 4096 0 0 0 0 17 1 0 0
/proc/21042/statm: 1271 560 384 171 0 196 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5084

[startup+0.301744 s]
/proc/loadavg: 2.06 2.01 2.00 4/81 21042
/proc/meminfo: memFree=1567888/2055920 swapFree=4192812/4192956
[pid=21042] ppid=21040 vsize=7084 CPUtime=0.28
/proc/21042/stat : 21042 (pcs.big) R 21040 21042 20592 0 -1 4194304 1475 656 0 0 28 0 0 0 25 0 1 0 59753872 7254016 1073 996147200 134512640 135215973 4294956304 18446744073709551615 134566518 0 0 4096 0 0 0 0 17 1 0 0
/proc/21042/statm: 1771 1073 408 171 0 696 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 7084

[startup+0.701783 s]
/proc/loadavg: 2.06 2.01 2.00 4/81 21042
/proc/meminfo: memFree=1567888/2055920 swapFree=4192812/4192956
[pid=21042] ppid=21040 vsize=7180 CPUtime=0.68
/proc/21042/stat : 21042 (pcs.big) R 21040 21042 20592 0 -1 4194304 1505 656 0 0 68 0 0 0 25 0 1 0 59753872 7352320 1103 996147200 134512640 135215973 4294956304 18446744073709551615 134583685 0 0 4096 0 0 0 0 17 1 0 0
/proc/21042/statm: 1795 1103 408 171 0 720 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 7180

[startup+1.50186 s]
/proc/loadavg: 2.06 2.01 2.00 3/82 21047
/proc/meminfo: memFree=1563848/2055920 swapFree=4192812/4192956
[pid=21042] ppid=21040 vsize=9628 CPUtime=1.47
/proc/21042/stat : 21042 (pcs.big) R 21040 21042 20592 0 -1 4194304 2110 656 0 0 146 1 0 0 25 0 1 0 59753872 9859072 1708 996147200 134512640 135215973 4294956304 18446744073709551615 134606574 0 0 4096 0 0 0 0 17 1 0 0
/proc/21042/statm: 2407 1708 408 171 0 1332 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 9628

[startup+3.10103 s]
/proc/loadavg: 2.06 2.01 2.00 3/82 21047
/proc/meminfo: memFree=1560840/2055920 swapFree=4192812/4192956
[pid=21042] ppid=21040 vsize=12828 CPUtime=3.05
/proc/21042/stat : 21042 (pcs.big) R 21040 21042 20592 0 -1 4194304 2893 656 0 0 304 1 0 0 25 0 1 0 59753872 13135872 2491 996147200 134512640 135215973 4294956304 18446744073709551615 134532896 0 0 4096 0 0 0 0 17 1 0 0
/proc/21042/statm: 3207 2491 408 171 0 2132 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 12828

[startup+6.30136 s]
/proc/loadavg: 2.06 2.01 2.00 3/82 21047
/proc/meminfo: memFree=1553736/2055920 swapFree=4192812/4192956
[pid=21042] ppid=21040 vsize=20492 CPUtime=6.23
/proc/21042/stat : 21042 (pcs.big) R 21040 21042 20592 0 -1 4194304 4852 656 0 0 620 3 0 0 25 0 1 0 59753872 20983808 4417 996147200 134512640 135215973 4294956304 18446744073709551615 7319598 0 0 4096 0 0 0 0 17 1 0 0
/proc/21042/statm: 5123 4417 408 171 0 4048 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 20492

[startup+12.702 s]
/proc/loadavg: 2.05 2.01 2.00 3/82 21047
/proc/meminfo: memFree=1536712/2055920 swapFree=4192812/4192956
[pid=21042] ppid=21040 vsize=36540 CPUtime=12.56
/proc/21042/stat : 21042 (pcs.big) R 21040 21042 20592 0 -1 4194304 8952 656 0 0 1252 4 0 0 25 0 1 0 59753872 37416960 8452 996147200 134512640 135215973 4294956304 18446744073709551615 134902073 0 0 4096 0 0 0 0 17 1 0 0
/proc/21042/statm: 9135 8452 408 171 0 8060 0
Current children cumulated CPU time (s) 12.56
Current children cumulated vsize (KiB) 36540

[startup+25.5013 s]
/proc/loadavg: 2.04 2.01 2.00 4/82 21047
/proc/meminfo: memFree=1506952/2055920 swapFree=4192812/4192956
[pid=21042] ppid=21040 vsize=66356 CPUtime=25.23
/proc/21042/stat : 21042 (pcs.big) R 21040 21042 20592 0 -1 4194304 16553 656 0 0 2515 8 0 0 25 0 1 0 59753872 67948544 15667 996147200 134512640 135215973 4294956304 18446744073709551615 4158960114 0 0 4096 0 0 0 0 17 1 0 0
/proc/21042/statm: 16589 15667 408 171 0 15514 0
Current children cumulated CPU time (s) 25.23
Current children cumulated vsize (KiB) 66356

[startup+51.102 s]
/proc/loadavg: 2.02 2.00 2.00 3/82 21047
/proc/meminfo: memFree=1441352/2055920 swapFree=4192812/4192956
[pid=21042] ppid=21040 vsize=133896 CPUtime=50.6
/proc/21042/stat : 21042 (pcs.big) R 21040 21042 20592 0 -1 4194304 33703 656 0 0 5043 17 0 0 25 0 1 0 59753872 137109504 32239 996147200 134512640 135215973 4294956304 18446744073709551615 134588312 0 0 4096 0 0 0 0 17 1 0 0
/proc/21042/statm: 33474 32239 408 171 0 32399 0
Current children cumulated CPU time (s) 50.6
Current children cumulated vsize (KiB) 133896

[startup+102.306 s]
/proc/loadavg: 2.01 2.00 2.00 3/82 21047
/proc/meminfo: memFree=1321992/2055920 swapFree=4192812/4192956
[pid=21042] ppid=21040 vsize=253476 CPUtime=101.32
/proc/21042/stat : 21042 (pcs.big) R 21040 21042 20592 0 -1 4194304 64177 656 0 0 10099 33 0 0 25 0 1 0 59753872 259559424 61688 996147200 134512640 135215973 4294956304 18446744073709551615 134589079 0 0 4096 0 0 0 0 17 1 0 0
/proc/21042/statm: 63369 61688 408 171 0 62294 0
Current children cumulated CPU time (s) 101.32
Current children cumulated vsize (KiB) 253476

[startup+162.301 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 21047
/proc/meminfo: memFree=1172872/2055920 swapFree=4192812/4192956
[pid=21042] ppid=21040 vsize=401456 CPUtime=160.76
/proc/21042/stat : 21042 (pcs.big) R 21040 21042 20592 0 -1 4194304 101829 656 0 0 16024 52 0 0 25 0 1 0 59753872 411090944 99211 996147200 134512640 135215973 4294956304 18446744073709551615 134648275 0 0 4096 0 0 0 0 17 1 0 0
/proc/21042/statm: 100364 99211 408 171 0 99289 0
Current children cumulated CPU time (s) 160.76
Current children cumulated vsize (KiB) 401456

[startup+222.302 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 21049
/proc/meminfo: memFree=1022728/2055920 swapFree=4192812/4192956
[pid=21042] ppid=21040 vsize=555912 CPUtime=220.19
/proc/21042/stat : 21042 (pcs.big) R 21040 21042 20592 0 -1 4194304 141047 656 0 0 21945 74 0 0 25 0 1 0 59753872 569253888 136380 996147200 134512640 135215973 4294956304 18446744073709551615 134599858 0 0 4096 0 0 0 0 17 1 0 0
/proc/21042/statm: 138978 136380 408 171 0 137903 0
Current children cumulated CPU time (s) 220.19
Current children cumulated vsize (KiB) 555912

[startup+282.302 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 21049
/proc/meminfo: memFree=897096/2055920 swapFree=4192812/4192956
[pid=21042] ppid=21040 vsize=680304 CPUtime=279.64
/proc/21042/stat : 21042 (pcs.big) R 21040 21042 20592 0 -1 4194304 172775 656 0 0 27874 90 0 0 25 0 1 0 59753872 696631296 168108 996147200 134512640 135215973 4294956304 18446744073709551615 134599879 0 0 4096 0 0 0 0 17 1 0 0
/proc/21042/statm: 170076 168108 408 171 0 169001 0
Current children cumulated CPU time (s) 279.64
Current children cumulated vsize (KiB) 680304

[startup+342.302 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 21049
/proc/meminfo: memFree=762184/2055920 swapFree=4192812/4192956
[pid=21042] ppid=21040 vsize=811900 CPUtime=339.06
/proc/21042/stat : 21042 (pcs.big) R 21040 21042 20592 0 -1 4194304 206321 656 0 0 33798 108 0 0 25 0 1 0 59753872 831385600 201397 996147200 134512640 135215973 4294956304 18446744073709551615 7355976 0 0 4096 0 0 0 0 17 1 0 0
/proc/21042/statm: 202975 201397 408 171 0 201900 0
Current children cumulated CPU time (s) 339.06
Current children cumulated vsize (KiB) 811900



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+395.301 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 21049
/proc/meminfo: memFree=649544/2055920 swapFree=4192812/4192956
[pid=21042] ppid=21040 vsize=921644 CPUtime=391.57
/proc/21042/stat : 21042 (pcs.big) R 21040 21042 20592 0 -1 4194304 234298 656 0 0 39034 123 0 0 25 0 1 0 59753872 943763456 229374 996147200 134512640 135215973 4294956304 18446744073709551615 134590572 0 0 4096 0 0 0 0 17 1 0 0
/proc/21042/statm: 230411 229374 408 171 0 229336 0
Current children cumulated CPU time (s) 391.57
Current children cumulated vsize (KiB) 921644

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

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

[startup+395.407 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 21049
/proc/meminfo: memFree=649544/2055920 swapFree=4192812/4192956
[pid=21042] ppid=21040 vsize=0 CPUtime=391.67
/proc/21042/stat : 21042 (pcs.big) R 21040 21042 20592 0 -1 4195332 234298 656 0 0 39034 133 0 0 25 0 1 0 59753872 0 0 996147200 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/21042/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 391.67
Current children cumulated vsize (KiB) 0

Child ended because it received signal 15 (SIGTERM)
Real time (s): 395.458
CPU time (s): 391.736
CPU user time (s): 390.346
CPU system time (s): 1.39079
CPU usage (%): 99.0588
Max. virtual memory (cumulated for all children) (KiB): 921644

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 390.346
system time used= 1.39079
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 234954
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= 15918

runsolver used 0.498924 second user time and 1.3118 second system time

The end

Launcher Data 

Begin job on node67 at 2009-07-16 08:48:31
IDJOB=2086883
IDBENCH=58655
IDSOLVER=733
FILE ID=node67/2086883-1247726911
PBS_JOBID= 9521595
Free space on /tmp= 66332 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/langford4/normalized-langford-4-25.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2086883-1247726911/watcher-2086883-1247726911 -o /tmp/evaluation-result-2086883-1247726911/solver-2086883-1247726911 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 197259531 HOME/instance-2086883-1247726911.xml

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

MD5SUM BENCH= f28667d5c0e930a5c10077f974b3889b
RANDOM SEED=197259531

node67.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		: 3000.239
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		: 3000.239
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:       1568368 kB
Buffers:         79360 kB
Cached:         267372 kB
SwapCached:          0 kB
Active:         146668 kB
Inactive:       266768 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1568368 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2288 kB
Writeback:           0 kB
Mapped:          87124 kB
Slab:            59212 kB
Committed_AS:   571300 kB
PageTables:       1992 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= 66332 MiB
End job on node67 at 2009-07-16 08:55:09