Trace number 2082340

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) 411.742 413.142

General information on the benchmark

Namecsp/langford2/
normalized-langford-2-13.xml
MD5SUMff00458be29b09ed6326f7909245998b
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 benchmark268.404
Satisfiable
(Un)Satisfiability was proved
Number of variables26
Number of constraints338
Maximum constraint arity2
Maximum domain size26
Number of constraints which are defined in extension0
Number of constraints which are defined in intension338
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c has operations which may create big domains
0.00/0.01	c big-domain mode
0.18/0.21	c Seed is 1377341089
0.18/0.21	c Constructing HOME/instance-2082340-1247720960.xml 
0.18/0.21	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,V0)
0.18/0.21	c  with 339 constraints
0.18/0.21	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-2082340-1247720960/watcher-2082340-1247720960 -o /tmp/evaluation-result-2082340-1247720960/solver-2082340-1247720960 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1377341089 HOME/instance-2082340-1247720960.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: 2.01 2.01 2.00 4/81 19427
/proc/meminfo: memFree=1087736/2055920 swapFree=4192812/4192956
[pid=19427] ppid=19425 vsize=18576 CPUtime=0
/proc/19427/stat : 19427 (runsolver) R 19425 19427 18013 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 59159920 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 221954764071 0 0 4096 24578 0 0 0 17 1 0 0
/proc/19427/statm: 4644 284 249 26 0 2626 0

[startup+0.0855049 s]
/proc/loadavg: 2.01 2.01 2.00 4/81 19427
/proc/meminfo: memFree=1087736/2055920 swapFree=4192812/4192956
[pid=19427] ppid=19425 vsize=4628 CPUtime=0.06
/proc/19427/stat : 19427 (pcs.big) R 19425 19427 18013 0 -1 4194304 899 823 0 0 6 0 0 0 18 0 1 0 59159920 4739072 508 996147200 134512640 135215973 4294956304 18446744073709551615 134599868 0 0 4096 0 0 0 0 17 1 0 0
/proc/19427/statm: 1157 508 408 171 0 82 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 4628

[startup+0.102506 s]
/proc/loadavg: 2.01 2.01 2.00 4/81 19427
/proc/meminfo: memFree=1087736/2055920 swapFree=4192812/4192956
[pid=19427] ppid=19425 vsize=4760 CPUtime=0.08
/proc/19427/stat : 19427 (pcs.big) R 19425 19427 18013 0 -1 4194304 907 823 0 0 8 0 0 0 18 0 1 0 59159920 4874240 516 996147200 134512640 135215973 4294956304 18446744073709551615 134650368 0 0 4096 0 0 0 0 17 1 0 0
/proc/19427/statm: 1190 516 408 171 0 115 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 4760

[startup+0.301526 s]
/proc/loadavg: 2.01 2.01 2.00 4/81 19427
/proc/meminfo: memFree=1087736/2055920 swapFree=4192812/4192956
[pid=19427] ppid=19425 vsize=5152 CPUtime=0.28
/proc/19427/stat : 19427 (pcs.big) R 19425 19427 18013 0 -1 4194304 1023 823 0 0 28 0 0 0 19 0 1 0 59159920 5275648 632 996147200 134512640 135215973 4294956304 18446744073709551615 134922447 0 0 4096 0 0 0 0 17 1 0 0
/proc/19427/statm: 1288 632 408 171 0 213 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 5152

[startup+0.70256 s]
/proc/loadavg: 2.01 2.01 2.00 4/81 19427
/proc/meminfo: memFree=1087736/2055920 swapFree=4192812/4192956
[pid=19427] ppid=19425 vsize=6188 CPUtime=0.67
/proc/19427/stat : 19427 (pcs.big) R 19425 19427 18013 0 -1 4194304 1256 823 0 0 67 0 0 0 23 0 1 0 59159920 6336512 865 996147200 134512640 135215973 4294956304 18446744073709551615 135097117 0 0 4096 0 0 0 0 17 1 0 0
/proc/19427/statm: 1547 865 408 171 0 472 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 6188

[startup+1.50163 s]
/proc/loadavg: 2.01 2.01 2.00 3/82 19433
/proc/meminfo: memFree=1085040/2055920 swapFree=4192812/4192956
[pid=19427] ppid=19425 vsize=8004 CPUtime=1.46
/proc/19427/stat : 19427 (pcs.big) R 19425 19427 18013 0 -1 4194304 1747 823 0 0 146 0 0 0 25 0 1 0 59159920 8196096 1323 996147200 134512640 135215973 4294956304 18446744073709551615 134590055 0 0 4096 0 0 0 0 17 1 0 0
/proc/19427/statm: 2001 1323 408 171 0 926 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 8004

[startup+3.10178 s]
/proc/loadavg: 2.01 2.01 2.00 3/82 19433
/proc/meminfo: memFree=1082416/2055920 swapFree=4192812/4192956
[pid=19427] ppid=19425 vsize=11868 CPUtime=3.05
/proc/19427/stat : 19427 (pcs.big) R 19425 19427 18013 0 -1 4194304 2727 823 0 0 304 1 0 0 25 0 1 0 59159920 12152832 2238 996147200 134512640 135215973 4294956304 18446744073709551615 134676666 0 0 4096 0 0 0 0 17 1 0 0
/proc/19427/statm: 2967 2238 408 171 0 1892 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 11868

[startup+6.30107 s]
/proc/loadavg: 2.01 2.01 2.00 3/82 19433
/proc/meminfo: memFree=1074872/2055920 swapFree=4192812/4192956
[pid=19427] ppid=19425 vsize=19120 CPUtime=6.22
/proc/19427/stat : 19427 (pcs.big) R 19425 19427 18013 0 -1 4194304 4666 823 0 0 620 2 0 0 25 0 1 0 59159920 19578880 4015 996147200 134512640 135215973 4294956304 18446744073709551615 4158960584 0 0 4096 0 0 0 0 17 1 0 0
/proc/19427/statm: 4780 4015 408 171 0 3705 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 19120

[startup+12.7016 s]
/proc/loadavg: 2.01 2.00 2.00 3/82 19433
/proc/meminfo: memFree=1060536/2055920 swapFree=4192812/4192956
[pid=19427] ppid=19425 vsize=33488 CPUtime=12.57
/proc/19427/stat : 19427 (pcs.big) R 19425 19427 18013 0 -1 4194304 8456 823 0 0 1252 5 0 0 25 0 1 0 59159920 34291712 7483 996147200 134512640 135215973 4294956304 18446744073709551615 134532677 0 0 4096 0 0 0 0 17 1 0 0
/proc/19427/statm: 8372 7483 408 171 0 7297 0
Current children cumulated CPU time (s) 12.57
Current children cumulated vsize (KiB) 33488

[startup+25.5028 s]
/proc/loadavg: 2.01 2.00 2.00 3/82 19433
/proc/meminfo: memFree=1032120/2055920 swapFree=4192812/4192956
[pid=19427] ppid=19425 vsize=62160 CPUtime=25.24
/proc/19427/stat : 19427 (pcs.big) R 19425 19427 18013 0 -1 4194304 16010 823 0 0 2514 10 0 0 25 0 1 0 59159920 63651840 14395 996147200 134512640 135215973 4294956304 18446744073709551615 4158960112 0 0 4096 0 0 0 0 17 1 0 0
/proc/19427/statm: 15540 14395 408 171 0 14465 0
Current children cumulated CPU time (s) 25.24
Current children cumulated vsize (KiB) 62160

[startup+51.1021 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 19433
/proc/meminfo: memFree=979448/2055920 swapFree=4192812/4192956
[pid=19427] ppid=19425 vsize=117136 CPUtime=50.6
/proc/19427/stat : 19427 (pcs.big) R 19425 19427 18013 0 -1 4194304 30581 823 0 0 5041 19 0 0 25 0 1 0 59159920 119947264 27684 996147200 134512640 135215973 4294956304 18446744073709551615 134631955 0 0 4096 0 0 0 0 17 1 0 0
/proc/19427/statm: 29284 27684 408 171 0 28209 0
Current children cumulated CPU time (s) 50.6
Current children cumulated vsize (KiB) 117136

[startup+102.308 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 19433
/proc/meminfo: memFree=870072/2055920 swapFree=4192812/4192956
[pid=19427] ppid=19425 vsize=229472 CPUtime=101.32
/proc/19427/stat : 19427 (pcs.big) R 19425 19427 18013 0 -1 4194304 60156 823 0 0 10095 37 0 0 25 0 1 0 59159920 234979328 54697 996147200 134512640 135215973 4294956304 18446744073709551615 4158960503 0 0 4096 0 0 0 0 17 1 0 0
/proc/19427/statm: 57368 54697 408 171 0 56293 0
Current children cumulated CPU time (s) 101.32
Current children cumulated vsize (KiB) 229472

[startup+162.301 s]
/proc/loadavg: 2.05 2.01 2.00 3/73 19467
/proc/meminfo: memFree=866704/2055920 swapFree=4192812/4192956
[pid=19427] ppid=19425 vsize=355380 CPUtime=160.99
/proc/19427/stat : 19427 (pcs.big) R 19425 19427 18013 0 -1 4194304 93529 823 0 0 16039 60 0 0 25 0 1 0 59159920 363909120 87045 996147200 134512640 135215973 4294956304 18446744073709551615 134589777 0 0 4096 0 0 0 0 17 0 0 0
/proc/19427/statm: 88845 87046 408 171 0 87770 0
Current children cumulated CPU time (s) 160.99
Current children cumulated vsize (KiB) 355380

[startup+222.302 s]
/proc/loadavg: 2.02 2.01 2.00 3/73 19467
/proc/meminfo: memFree=739088/2055920 swapFree=4192812/4192956
[pid=19427] ppid=19425 vsize=490280 CPUtime=220.96
/proc/19427/stat : 19427 (pcs.big) R 19425 19427 18013 0 -1 4194304 129250 823 0 0 22018 78 0 0 25 0 1 0 59159920 502046720 118669 996147200 134512640 135215973 4294956304 18446744073709551615 2413194 0 0 4096 0 0 0 0 17 0 0 0
/proc/19427/statm: 122570 118669 408 171 0 121495 0
Current children cumulated CPU time (s) 220.96
Current children cumulated vsize (KiB) 490280

[startup+282.303 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 19467
/proc/meminfo: memFree=608016/2055920 swapFree=4192812/4192956
[pid=19427] ppid=19425 vsize=613832 CPUtime=280.94
/proc/19427/stat : 19427 (pcs.big) R 19425 19427 18013 0 -1 4194304 162100 823 0 0 27997 97 0 0 25 0 1 0 59159920 628563968 151519 996147200 134512640 135215973 4294956304 18446744073709551615 134902055 0 0 4096 0 0 0 0 17 0 0 0
/proc/19427/statm: 153458 151520 408 171 0 152383 0
Current children cumulated CPU time (s) 280.94
Current children cumulated vsize (KiB) 613832

[startup+342.302 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 19467
/proc/meminfo: memFree=473040/2055920 swapFree=4192812/4192956
[pid=19427] ppid=19425 vsize=779676 CPUtime=340.92
/proc/19427/stat : 19427 (pcs.big) R 19425 19427 18013 0 -1 4194304 205403 823 0 0 33970 122 0 0 25 0 1 0 59159920 798388224 184580 996147200 134512640 135215973 4294956304 18446744073709551615 134617361 0 0 4096 0 0 0 0 17 0 0 0
/proc/19427/statm: 194919 184580 408 171 0 193844 0
Current children cumulated CPU time (s) 340.92
Current children cumulated vsize (KiB) 779676

[startup+402.303 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 19467
/proc/meminfo: memFree=347536/2055920 swapFree=4192812/4192956
[pid=19427] ppid=19425 vsize=898372 CPUtime=400.89
/proc/19427/stat : 19427 (pcs.big) R 19425 19427 18013 0 -1 4194304 236910 823 0 0 39950 139 0 0 25 0 1 0 59159920 919932928 216087 996147200 134512640 135215973 4294956304 18446744073709551615 134600099 0 0 4096 0 0 0 0 17 0 0 0
/proc/19427/statm: 224593 216087 408 171 0 223518 0
Current children cumulated CPU time (s) 400.89
Current children cumulated vsize (KiB) 898372



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+413.002 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 19467
/proc/meminfo: memFree=320400/2055920 swapFree=4192812/4192956
[pid=19427] ppid=19425 vsize=921724 CPUtime=411.59
/proc/19427/stat : 19427 (pcs.big) R 19425 19427 18013 0 -1 4194304 243089 823 0 0 41017 142 0 0 25 0 1 0 59159920 943845376 222266 996147200 134512640 135215973 4294956304 18446744073709551615 134923956 0 0 4096 0 0 0 0 17 0 0 0
/proc/19427/statm: 230431 222266 408 171 0 229356 0
Current children cumulated CPU time (s) 411.59
Current children cumulated vsize (KiB) 921724

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

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

[startup+413.107 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 19467
/proc/meminfo: memFree=320400/2055920 swapFree=4192812/4192956
[pid=19427] ppid=19425 vsize=0 CPUtime=411.69
/proc/19427/stat : 19427 (pcs.big) R 19425 19427 18013 0 -1 4195332 243090 823 0 0 41017 152 0 0 25 0 1 0 59159920 0 0 996147200 0 0 0 0 0 0 0 4096 0 0 0 0 17 0 0 0
/proc/19427/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 411.69
Current children cumulated vsize (KiB) 0

Child ended because it received signal 15 (SIGTERM)
Real time (s): 413.142
CPU time (s): 411.742
CPU user time (s): 410.176
CPU system time (s): 1.56676
CPU usage (%): 99.6613
Max. virtual memory (cumulated for all children) (KiB): 921724

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 410.176
system time used= 1.56676
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 243913
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= 22
involuntary context switches= 4160

runsolver used 0.553915 second user time and 1.27181 second system time

The end

Launcher Data 

Begin job on node43 at 2009-07-16 07:09:20
IDJOB=2082340
IDBENCH=57573
IDSOLVER=733
FILE ID=node43/2082340-1247720960
PBS_JOBID= 9521312
Free space on /tmp= 66192 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/langford2/normalized-langford-2-13.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2082340-1247720960/watcher-2082340-1247720960 -o /tmp/evaluation-result-2082340-1247720960/solver-2082340-1247720960 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1377341089 HOME/instance-2082340-1247720960.xml

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

MD5SUM BENCH= ff00458be29b09ed6326f7909245998b
RANDOM SEED=1377341089

node43.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		: 3000.213
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	: 5931.00
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		: 3000.213
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:       1088216 kB
Buffers:         98520 kB
Cached:         547956 kB
SwapCached:          0 kB
Active:         298136 kB
Inactive:       566724 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1088216 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1820 kB
Writeback:           0 kB
Mapped:         238848 kB
Slab:            87608 kB
Committed_AS:   762768 kB
PageTables:       2312 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= 66172 MiB
End job on node43 at 2009-07-16 07:16:15