Trace number 2086906

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) 363.828 367.251

General information on the benchmark

Namecsp/langford4/
normalized-langford-4-30.xml
MD5SUM947fd10df4466df33806de675e63a7bd
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 variables120
Number of constraints7230
Maximum constraint arity2
Maximum domain size120
Number of constraints which are defined in extension0
Number of constraints which are defined in intension7230
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 1980406682
0.00/0.02	c Constructing HOME/instance-2086906-1247726937.xml 
0.18/0.26	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,V100,V101,V102,V103,V104,V105,V106,V107,V108,V109,V110,V111,V112,V113,V114,V115,V116,V117,V118,V119,V0)
0.18/0.26	c  with 7231 constraints
0.18/0.26	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-2086906-1247726937/watcher-2086906-1247726937 -o /tmp/evaluation-result-2086906-1247726937/solver-2086906-1247726937 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1980406682 HOME/instance-2086906-1247726937.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 4/72 12674
/proc/meminfo: memFree=1347084/2055920 swapFree=4192812/4192956
[pid=12674] ppid=12672 vsize=18576 CPUtime=0
/proc/12674/stat : 12674 (runsolver) R 12672 12674 12316 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 59760842 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 215418989863 0 0 4096 24578 0 0 0 17 1 0 0
/proc/12674/statm: 4644 284 249 26 0 2626 0

[startup+0.0805231 s]
/proc/loadavg: 2.00 2.00 2.00 4/72 12674
/proc/meminfo: memFree=1347084/2055920 swapFree=4192812/4192956
[pid=12674] ppid=12672 vsize=4876 CPUtime=0.06
/proc/12674/stat : 12674 (pcs.big) R 12672 12674 12316 0 -1 4194304 895 656 0 0 6 0 0 0 23 0 1 0 59760842 4993024 526 996147200 134512640 135215973 4294956304 18446744073709551615 134899197 0 0 4096 0 0 0 0 17 1 0 0
/proc/12674/statm: 1219 526 384 171 0 144 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 4876

[startup+0.101525 s]
/proc/loadavg: 2.00 2.00 2.00 4/72 12674
/proc/meminfo: memFree=1347084/2055920 swapFree=4192812/4192956
[pid=12674] ppid=12672 vsize=5008 CPUtime=0.08
/proc/12674/stat : 12674 (pcs.big) R 12672 12674 12316 0 -1 4194304 932 656 0 0 8 0 0 0 23 0 1 0 59760842 5128192 563 996147200 134512640 135215973 4294956304 18446744073709551615 134744828 0 0 4096 0 0 0 0 17 1 0 0
/proc/12674/statm: 1252 563 384 171 0 177 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5008

[startup+0.301553 s]
/proc/loadavg: 2.00 2.00 2.00 4/72 12674
/proc/meminfo: memFree=1347084/2055920 swapFree=4192812/4192956
[pid=12674] ppid=12672 vsize=6492 CPUtime=0.27
/proc/12674/stat : 12674 (pcs.big) R 12672 12674 12316 0 -1 4194304 1338 656 0 0 27 0 0 0 25 0 1 0 59760842 6647808 936 996147200 134512640 135215973 4294956304 18446744073709551615 134533341 0 0 4096 0 0 0 0 17 1 0 0
/proc/12674/statm: 1623 936 406 171 0 548 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 6492

[startup+0.701597 s]
/proc/loadavg: 2.00 2.00 2.00 4/72 12674
/proc/meminfo: memFree=1347084/2055920 swapFree=4192812/4192956
[pid=12674] ppid=12672 vsize=9620 CPUtime=0.67
/proc/12674/stat : 12674 (pcs.big) R 12672 12674 12316 0 -1 4194304 2149 656 0 0 67 0 0 0 25 0 1 0 59760842 9850880 1694 996147200 134512640 135215973 4294956304 18446744073709551615 134532896 0 0 4096 0 0 0 0 17 1 0 0
/proc/12674/statm: 2405 1694 408 171 0 1330 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 9620

[startup+1.50269 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 12679
/proc/meminfo: memFree=1341764/2055920 swapFree=4192812/4192956
[pid=12674] ppid=12672 vsize=10884 CPUtime=1.46
/proc/12674/stat : 12674 (pcs.big) R 12672 12674 12316 0 -1 4194304 2452 656 0 0 146 0 0 0 25 0 1 0 59760842 11145216 1997 996147200 134512640 135215973 4294956304 18446744073709551615 134532677 0 0 4096 0 0 0 0 17 1 0 0
/proc/12674/statm: 2721 1997 408 171 0 1646 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 10884

[startup+3.10187 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 12679
/proc/meminfo: memFree=1338820/2055920 swapFree=4192812/4192956
[pid=12674] ppid=12672 vsize=14556 CPUtime=3.05
/proc/12674/stat : 12674 (pcs.big) R 12672 12674 12316 0 -1 4194304 3374 656 0 0 304 1 0 0 25 0 1 0 59760842 14905344 2919 996147200 134512640 135215973 4294956304 18446744073709551615 4158960021 0 0 4096 0 0 0 0 17 1 0 0
/proc/12674/statm: 3639 2919 408 171 0 2564 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 14556

[startup+6.30122 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 12679
/proc/meminfo: memFree=1331652/2055920 swapFree=4192812/4192956
[pid=12674] ppid=12672 vsize=22252 CPUtime=6.22
/proc/12674/stat : 12674 (pcs.big) R 12672 12674 12316 0 -1 4194304 5327 656 0 0 620 2 0 0 25 0 1 0 59760842 22786048 4839 996147200 134512640 135215973 4294956304 18446744073709551615 4158961211 0 0 4096 0 0 0 0 17 1 0 0
/proc/12674/statm: 5563 4839 408 171 0 4488 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 22252

[startup+12.7019 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 12679
/proc/meminfo: memFree=1312836/2055920 swapFree=4192812/4192956
[pid=12674] ppid=12672 vsize=39316 CPUtime=12.55
/proc/12674/stat : 12674 (pcs.big) R 12672 12674 12316 0 -1 4194304 9659 656 0 0 1251 4 0 0 25 0 1 0 59760842 40259584 9106 996147200 134512640 135215973 4294956304 18446744073709551615 134533248 0 0 4096 0 0 0 0 17 1 0 0
/proc/12674/statm: 9829 9106 408 171 0 8754 0
Current children cumulated CPU time (s) 12.55
Current children cumulated vsize (KiB) 39316

[startup+25.5014 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 12679
/proc/meminfo: memFree=1281028/2055920 swapFree=4192812/4192956
[pid=12674] ppid=12672 vsize=69576 CPUtime=25.24
/proc/12674/stat : 12674 (pcs.big) R 12672 12674 12316 0 -1 4194304 17326 656 0 0 2517 7 0 0 25 0 1 0 59760842 71245824 16579 996147200 134512640 135215973 4294956304 18446744073709551615 134589881 0 0 4096 0 0 0 0 17 1 0 0
/proc/12674/statm: 17394 16579 408 171 0 16319 0
Current children cumulated CPU time (s) 25.24
Current children cumulated vsize (KiB) 69576

[startup+51.1012 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 12679
/proc/meminfo: memFree=1213700/2055920 swapFree=4192812/4192956
[pid=12674] ppid=12672 vsize=136172 CPUtime=50.59
/proc/12674/stat : 12674 (pcs.big) R 12672 12674 12316 0 -1 4194304 34225 656 0 0 5045 14 0 0 25 0 1 0 59760842 139440128 33221 996147200 134512640 135215973 4294956304 18446744073709551615 134533052 0 0 4096 0 0 0 0 17 1 0 0
/proc/12674/statm: 34043 33221 408 171 0 32968 0
Current children cumulated CPU time (s) 50.59
Current children cumulated vsize (KiB) 136172

[startup+102.307 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 12679
/proc/meminfo: memFree=1086212/2055920 swapFree=4192812/4192956
[pid=12674] ppid=12672 vsize=259384 CPUtime=101.34
/proc/12674/stat : 12674 (pcs.big) R 12672 12674 12316 0 -1 4194304 65535 656 0 0 10104 30 0 0 25 0 1 0 59760842 265609216 64018 996147200 134512640 135215973 4294956304 18446744073709551615 134923818 0 0 4096 0 0 0 0 17 1 0 0
/proc/12674/statm: 64846 64018 408 171 0 63771 0
Current children cumulated CPU time (s) 101.34
Current children cumulated vsize (KiB) 259384

[startup+162.302 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 12681
/proc/meminfo: memFree=947332/2055920 swapFree=4192812/4192956
[pid=12674] ppid=12672 vsize=400856 CPUtime=160.77
/proc/12674/stat : 12674 (pcs.big) R 12672 12674 12316 0 -1 4194304 101481 656 0 0 16030 47 0 0 25 0 1 0 59760842 410476544 98810 996147200 134512640 135215973 4294956304 18446744073709551615 134597480 0 0 4096 0 0 0 0 17 1 0 0
/proc/12674/statm: 100214 98810 408 171 0 99139 0
Current children cumulated CPU time (s) 160.77
Current children cumulated vsize (KiB) 400856

[startup+222.301 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 12681
/proc/meminfo: memFree=792004/2055920 swapFree=4192812/4192956
[pid=12674] ppid=12672 vsize=550692 CPUtime=220.21
/proc/12674/stat : 12674 (pcs.big) R 12672 12674 12316 0 -1 4194304 139476 656 0 0 21956 65 0 0 25 0 1 0 59760842 563908608 136805 996147200 134512640 135215973 4294956304 18446744073709551615 135095305 0 0 4096 0 0 0 0 17 1 0 0
/proc/12674/statm: 137673 136805 408 171 0 136598 0
Current children cumulated CPU time (s) 220.21
Current children cumulated vsize (KiB) 550692

[startup+282.301 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 12681
/proc/meminfo: memFree=619972/2055920 swapFree=4192812/4192956
[pid=12674] ppid=12672 vsize=722136 CPUtime=279.65
/proc/12674/stat : 12674 (pcs.big) R 12672 12674 12316 0 -1 4194304 182912 656 0 0 27879 86 0 0 25 0 1 0 59760842 739467264 178192 996147200 134512640 135215973 4294956304 18446744073709551615 134599879 0 0 4096 0 0 0 0 17 1 0 0
/proc/12674/statm: 180534 178192 408 171 0 179459 0
Current children cumulated CPU time (s) 279.65
Current children cumulated vsize (KiB) 722136

[startup+342.302 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 12681
/proc/meminfo: memFree=467652/2055920 swapFree=4192812/4192956
[pid=12674] ppid=12672 vsize=860056 CPUtime=339.1
/proc/12674/stat : 12674 (pcs.big) R 12672 12674 12316 0 -1 4194304 217971 656 0 0 33807 103 0 0 25 0 1 0 59760842 880697344 213251 996147200 134512640 135215973 4294956304 18446744073709551615 134934371 0 0 4096 0 0 0 0 17 1 0 0
/proc/12674/statm: 215014 213251 408 171 0 213939 0
Current children cumulated CPU time (s) 339.1
Current children cumulated vsize (KiB) 860056



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+367.102 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 12681
/proc/meminfo: memFree=401348/2055920 swapFree=4192812/4192956
[pid=12674] ppid=12672 vsize=921768 CPUtime=363.66
/proc/12674/stat : 12674 (pcs.big) R 12672 12674 12316 0 -1 4194304 233616 656 0 0 36256 110 0 0 25 0 1 0 59760842 943890432 228639 996147200 134512640 135215973 4294956304 18446744073709551615 134590638 0 0 4096 0 0 0 0 17 1 0 0
/proc/12674/statm: 230442 228639 408 171 0 229367 0
Current children cumulated CPU time (s) 363.66
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+367.207 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 12681
/proc/meminfo: memFree=401348/2055920 swapFree=4192812/4192956
[pid=12674] ppid=12672 vsize=0 CPUtime=363.76
/proc/12674/stat : 12674 (pcs.big) R 12672 12674 12316 0 -1 4195332 233616 656 0 0 36256 120 0 0 25 0 1 0 59760842 0 0 996147200 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/12674/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 363.76
Current children cumulated vsize (KiB) 0

Child ended because it received signal 15 (SIGTERM)
Real time (s): 367.251
CPU time (s): 363.828
CPU user time (s): 362.572
CPU system time (s): 1.25581
CPU usage (%): 99.0679
Max. virtual memory (cumulated for all children) (KiB): 921768

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 362.572
system time used= 1.25581
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 234272
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= 7916

runsolver used 0.582911 second user time and 1.07284 second system time

The end

Launcher Data 

Begin job on node9 at 2009-07-16 08:48:57
IDJOB=2086906
IDBENCH=58658
IDSOLVER=734
FILE ID=node9/2086906-1247726937
PBS_JOBID= 9521558
Free space on /tmp= 66376 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/langford4/normalized-langford-4-30.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2086906-1247726937/watcher-2086906-1247726937 -o /tmp/evaluation-result-2086906-1247726937/solver-2086906-1247726937 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1980406682 HOME/instance-2086906-1247726937.xml

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

MD5SUM BENCH= 947fd10df4466df33806de675e63a7bd
RANDOM SEED=1980406682

node9.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		: 3000.216
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		: 3000.216
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:       1347564 kB
Buffers:         77728 kB
Cached:         244116 kB
SwapCached:          0 kB
Active:         356656 kB
Inactive:       281624 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1347564 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2852 kB
Writeback:           0 kB
Mapped:         327876 kB
Slab:            54868 kB
Committed_AS:   832568 kB
PageTables:       2388 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= 66372 MiB
End job on node9 at 2009-07-16 08:55:06