Trace number 2080888

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 0.3.2UNSAT 107.362 108.343

DiagnosticValue
ASSIGNMENTS37925

General information on the benchmark

Namecsp/langford3/
normalized-langford-3-12.xml
MD5SUMdee4599863daae352af5f2661ac2dee6
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark3.42848
Satisfiable
(Un)Satisfiability was proved
Number of variables36
Number of constraints654
Maximum constraint arity2
Maximum domain size36
Number of constraints which are defined in extension0
Number of constraints which are defined in intension654
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
0.08/0.15	c Seed is 1435701720
0.08/0.15	c Constructing HOME/instance-2080888-1247718943.xml 
0.08/0.15	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,V0)
0.08/0.15	c  with 655 constraints
0.08/0.15	c Solving 37925 backtracks 17 restarts
107.30/108.30	s UNSATISFIABLE
107.30/108.30	d ASSIGNMENTS 37925

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2080888-1247718943/watcher-2080888-1247718943 -o /tmp/evaluation-result-2080888-1247718943/solver-2080888-1247718943 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1435701720 HOME/instance-2080888-1247718943.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: 1.91 1.98 1.99 4/72 19195
/proc/meminfo: memFree=1554296/2055920 swapFree=4192812/4192956
[pid=19195] ppid=19193 vsize=18576 CPUtime=0
/proc/19195/stat : 19195 (runsolver) R 19193 19195 16428 0 -1 4194368 15 0 0 0 0 0 0 0 21 0 1 0 58957742 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 273653755175 0 0 4096 24578 0 0 0 17 1 0 0
/proc/19195/statm: 4644 284 249 26 0 2626 0

[startup+0.0950469 s]
/proc/loadavg: 1.91 1.98 1.99 4/72 19195
/proc/meminfo: memFree=1554296/2055920 swapFree=4192812/4192956
[pid=19195] ppid=19193 vsize=4756 CPUtime=0.07
/proc/19195/stat : 19195 (pcs.big) R 19193 19195 16428 0 -1 4194304 902 654 0 0 7 0 0 0 18 0 1 0 58957742 4870144 533 996147200 134512640 135215973 4294956304 18446744073709551615 134600651 0 0 4096 0 0 0 0 17 1 0 0
/proc/19195/statm: 1189 533 408 171 0 114 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 4756

[startup+0.101045 s]
/proc/loadavg: 1.91 1.98 1.99 4/72 19195
/proc/meminfo: memFree=1554296/2055920 swapFree=4192812/4192956
[pid=19195] ppid=19193 vsize=4756 CPUtime=0.08
/proc/19195/stat : 19195 (pcs.big) R 19193 19195 16428 0 -1 4194304 902 654 0 0 8 0 0 0 18 0 1 0 58957742 4870144 533 996147200 134512640 135215973 4294956304 18446744073709551615 134648284 0 0 4096 0 0 0 0 17 1 0 0
/proc/19195/statm: 1189 533 408 171 0 114 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 4756

[startup+0.301059 s]
/proc/loadavg: 1.91 1.98 1.99 4/72 19195
/proc/meminfo: memFree=1554296/2055920 swapFree=4192812/4192956
[pid=19195] ppid=19193 vsize=5276 CPUtime=0.28
/proc/19195/stat : 19195 (pcs.big) R 19193 19195 16428 0 -1 4194304 1020 654 0 0 28 0 0 0 20 0 1 0 58957742 5402624 651 996147200 134512640 135215973 4294956304 18446744073709551615 134616491 0 0 4096 0 0 0 0 17 1 0 0
/proc/19195/statm: 1319 651 408 171 0 244 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 5276

[startup+0.701086 s]
/proc/loadavg: 1.91 1.98 1.99 4/72 19195
/proc/meminfo: memFree=1554296/2055920 swapFree=4192812/4192956
[pid=19195] ppid=19193 vsize=6204 CPUtime=0.67
/proc/19195/stat : 19195 (pcs.big) R 19193 19195 16428 0 -1 4194304 1234 654 0 0 67 0 0 0 23 0 1 0 58957742 6352896 865 996147200 134512640 135215973 4294956304 18446744073709551615 134585409 0 0 4096 0 0 0 0 17 1 0 0
/proc/19195/statm: 1551 865 408 171 0 476 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 6204

[startup+1.50114 s]
/proc/loadavg: 1.91 1.98 1.99 3/73 19200
/proc/meminfo: memFree=1551664/2055920 swapFree=4192812/4192956
[pid=19195] ppid=19193 vsize=7928 CPUtime=1.47
/proc/19195/stat : 19195 (pcs.big) R 19193 19195 16428 0 -1 4194304 1669 654 0 0 146 1 0 0 25 0 1 0 58957742 8118272 1300 996147200 134512640 135215973 4294956304 18446744073709551615 134590078 0 0 4096 0 0 0 0 17 1 0 0
/proc/19195/statm: 1982 1300 408 171 0 907 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 7928

[startup+3.10125 s]
/proc/loadavg: 1.91 1.98 1.99 3/73 19200
/proc/meminfo: memFree=1549232/2055920 swapFree=4192812/4192956
[pid=19195] ppid=19193 vsize=11200 CPUtime=3.06
/proc/19195/stat : 19195 (pcs.big) R 19193 19195 16428 0 -1 4194304 2528 654 0 0 304 2 0 0 25 0 1 0 58957742 11468800 2126 996147200 134512640 135215973 4294956304 18446744073709551615 4740404 0 0 4096 0 0 0 0 17 1 0 0
/proc/19195/statm: 2800 2126 408 171 0 1725 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 11200

[startup+6.30246 s]
/proc/loadavg: 1.92 1.98 1.99 3/73 19200
/proc/meminfo: memFree=1542128/2055920 swapFree=4192812/4192956
[pid=19195] ppid=19193 vsize=18020 CPUtime=6.23
/proc/19195/stat : 19195 (pcs.big) R 19193 19195 16428 0 -1 4194304 4294 654 0 0 620 3 0 0 25 0 1 0 58957742 18452480 3827 996147200 134512640 135215973 4294956304 18446744073709551615 134585388 0 0 4096 0 0 0 0 17 1 0 0
/proc/19195/statm: 4505 3827 408 171 0 3430 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 18020

[startup+12.7019 s]
/proc/loadavg: 1.93 1.98 1.99 3/73 19200
/proc/meminfo: memFree=1528112/2055920 swapFree=4192812/4192956
[pid=19195] ppid=19193 vsize=31476 CPUtime=12.58
/proc/19195/stat : 19195 (pcs.big) R 19193 19195 16428 0 -1 4194304 7801 654 0 0 1253 5 0 0 25 0 1 0 58957742 32231424 7172 996147200 134512640 135215973 4294956304 18446744073709551615 134648422 0 0 4096 0 0 0 0 17 1 0 0
/proc/19195/statm: 7869 7172 408 171 0 6794 0
Current children cumulated CPU time (s) 12.58
Current children cumulated vsize (KiB) 31476

[startup+25.5018 s]
/proc/loadavg: 1.94 1.98 1.99 3/73 19200
/proc/meminfo: memFree=1501808/2055920 swapFree=4192812/4192956
[pid=19195] ppid=19193 vsize=57148 CPUtime=25.26
/proc/19195/stat : 19195 (pcs.big) R 19193 19195 16428 0 -1 4194304 14521 654 0 0 2517 9 0 0 25 0 1 0 58957742 58519552 13570 996147200 134512640 135215973 4294956304 18446744073709551615 4751126 0 0 4096 0 0 0 0 17 1 0 0
/proc/19195/statm: 14287 13570 408 171 0 13212 0
Current children cumulated CPU time (s) 25.26
Current children cumulated vsize (KiB) 57148

[startup+51.1015 s]
/proc/loadavg: 1.96 1.98 1.99 3/73 19200
/proc/meminfo: memFree=1451376/2055920 swapFree=4192812/4192956
[pid=19195] ppid=19193 vsize=108360 CPUtime=50.63
/proc/19195/stat : 19195 (pcs.big) R 19193 19195 16428 0 -1 4194304 27875 654 0 0 5047 16 0 0 25 0 1 0 58957742 110960640 26282 996147200 134512640 135215973 4294956304 18446744073709551615 134648275 0 0 4096 0 0 0 0 17 1 0 0
/proc/19195/statm: 27090 26282 408 171 0 26015 0
Current children cumulated CPU time (s) 50.63
Current children cumulated vsize (KiB) 108360

[startup+102.307 s]
/proc/loadavg: 1.98 1.98 1.99 3/73 19200
/proc/meminfo: memFree=1353008/2055920 swapFree=4192812/4192956
[pid=19195] ppid=19193 vsize=206348 CPUtime=101.35
/proc/19195/stat : 19195 (pcs.big) R 19193 19195 16428 0 -1 4194304 53458 654 0 0 10106 29 0 0 25 0 1 0 58957742 211300352 50583 996147200 134512640 135215973 4294956304 18446744073709551615 134599868 0 0 4096 0 0 0 0 17 1 0 0
/proc/19195/statm: 51587 50583 408 171 0 50512 0
Current children cumulated CPU time (s) 101.35
Current children cumulated vsize (KiB) 206348

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

[startup+105.501 s]
/proc/loadavg: 1.98 1.98 1.99 3/73 19200
/proc/meminfo: memFree=1347248/2055920 swapFree=4192812/4192956
[pid=19195] ppid=19193 vsize=211576 CPUtime=104.52
/proc/19195/stat : 19195 (pcs.big) R 19193 19195 16428 0 -1 4194304 54854 654 0 0 10422 30 0 0 25 0 1 0 58957742 216653824 51979 996147200 134512640 135215973 4294956304 18446744073709551615 134600006 0 0 4096 0 0 0 0 17 1 0 0
/proc/19195/statm: 52894 51979 408 171 0 51819 0
Current children cumulated CPU time (s) 104.52
Current children cumulated vsize (KiB) 211576

[startup+107.101 s]
/proc/loadavg: 1.98 1.98 1.99 3/73 19200
/proc/meminfo: memFree=1345328/2055920 swapFree=4192812/4192956
[pid=19195] ppid=19193 vsize=214340 CPUtime=106.12
/proc/19195/stat : 19195 (pcs.big) R 19193 19195 16428 0 -1 4194304 55557 654 0 0 10581 31 0 0 25 0 1 0 58957742 219484160 52682 996147200 134512640 135215973 4294956304 18446744073709551615 134597613 0 0 4096 0 0 0 0 17 1 0 0
/proc/19195/statm: 53585 52682 408 171 0 52510 0
Current children cumulated CPU time (s) 106.12
Current children cumulated vsize (KiB) 214340

[startup+107.901 s]
/proc/loadavg: 1.98 1.98 1.99 3/73 19200
/proc/meminfo: memFree=1343408/2055920 swapFree=4192812/4192956
[pid=19195] ppid=19193 vsize=223716 CPUtime=106.9
/proc/19195/stat : 19195 (pcs.big) R 19193 19195 16428 0 -1 4194304 57939 654 0 0 10659 31 0 0 25 0 1 0 58957742 229085184 53015 996147200 134512640 135215973 4294956304 18446744073709551615 134600837 0 0 4096 0 0 0 0 17 1 0 0
/proc/19195/statm: 55929 53015 408 171 0 54854 0
Current children cumulated CPU time (s) 106.9
Current children cumulated vsize (KiB) 223716

[startup+108.302 s]
/proc/loadavg: 1.98 1.98 1.99 3/73 19200
/proc/meminfo: memFree=1343408/2055920 swapFree=4192812/4192956
[pid=19195] ppid=19193 vsize=205408 CPUtime=107.3
/proc/19195/stat : 19195 (pcs.big) R 19193 19195 16428 0 -1 4194304 57969 654 0 0 10699 31 0 0 25 0 1 0 58957742 210337792 50691 996147200 134512640 135215973 4294956304 18446744073709551615 4739070 0 0 4096 0 0 0 0 17 1 0 0
/proc/19195/statm: 51352 50691 408 171 0 50277 0
Current children cumulated CPU time (s) 107.3
Current children cumulated vsize (KiB) 205408

Child status: 0
Real time (s): 108.343
CPU time (s): 107.362
CPU user time (s): 107.004
CPU system time (s): 0.357945
CPU usage (%): 99.0939
Max. virtual memory (cumulated for all children) (KiB): 223716

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 107.004
system time used= 0.357945
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 58626
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= 2296

runsolver used 0.150977 second user time and 0.319951 second system time

The end

Launcher Data 

Begin job on node52 at 2009-07-16 06:35:43
IDJOB=2080888
IDBENCH=57188
IDSOLVER=733
FILE ID=node52/2080888-1247718943
PBS_JOBID= 9521338
Free space on /tmp= 66188 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/langford3/normalized-langford-3-12.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2080888-1247718943/watcher-2080888-1247718943 -o /tmp/evaluation-result-2080888-1247718943/solver-2080888-1247718943 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1435701720 HOME/instance-2080888-1247718943.xml

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

MD5SUM BENCH= dee4599863daae352af5f2661ac2dee6
RANDOM SEED=1435701720

node52.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		: 3000.236
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		: 3000.236
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:       1554776 kB
Buffers:         76048 kB
Cached:         235596 kB
SwapCached:          0 kB
Active:         195988 kB
Inactive:       236392 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1554776 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1784 kB
Writeback:           0 kB
Mapped:         132276 kB
Slab:            53700 kB
Committed_AS:   769664 kB
PageTables:       2160 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= 66184 MiB
End job on node52 at 2009-07-16 06:37:31