Trace number 2086884

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) 384.882 388.551

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 1902175423
0.00/0.02	c Constructing HOME/instance-2086884-1247726915.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-2086884-1247726915/watcher-2086884-1247726915 -o /tmp/evaluation-result-2086884-1247726915/solver-2086884-1247726915 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1902175423 HOME/instance-2086884-1247726915.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: 1.93 2.00 1.99 4/81 12924
/proc/meminfo: memFree=1491032/2055920 swapFree=4192812/4192956
[pid=12924] ppid=12922 vsize=5356 CPUtime=0
/proc/12924/stat : 12924 (pcssolve) R 12922 12924 12887 0 -1 4194304 290 0 0 0 0 0 0 0 21 0 1 0 59758048 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 272467815071 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/12924/statm: 1339 241 200 169 0 50 0
[pid=12925] ppid=12924 vsize=100 CPUtime=0
/proc/12925/stat : 12925 (fgrep) R 12924 12924 12887 0 -1 4194304 24 0 0 0 0 0 0 0 22 0 1 0 59758049 102400 3 996147200 0 0 548682069725 18446744073709551615 272467815719 0 0 4096 0 0 0 0 17 1 0 0
/proc/12925/statm: 25 3 0 0 0 2 0
[pid=12926] ppid=12924 vsize=5356 CPUtime=0
/proc/12926/stat : 12926 (pcssolve) R 12924 12924 12887 0 -1 4194368 0 0 0 0 0 0 0 0 21 0 1 0 59758049 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 272467815071 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/12926/statm: 1339 241 200 169 0 50 0

[startup+0.091025 s]
/proc/loadavg: 1.93 2.00 1.99 4/81 12924
/proc/meminfo: memFree=1491032/2055920 swapFree=4192812/4192956
[pid=12924] ppid=12922 vsize=5084 CPUtime=0.07
/proc/12924/stat : 12924 (pcs.big) R 12922 12924 12887 0 -1 4194304 927 656 0 0 7 0 0 0 23 0 1 0 59758048 5206016 558 996147200 134512640 135215973 4294956304 18446744073709551615 5119630 0 0 4096 0 0 0 0 17 1 0 0
/proc/12924/statm: 1271 558 384 171 0 196 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 5084

[startup+0.101025 s]
/proc/loadavg: 1.93 2.00 1.99 4/81 12924
/proc/meminfo: memFree=1491032/2055920 swapFree=4192812/4192956
[pid=12924] ppid=12922 vsize=5084 CPUtime=0.08
/proc/12924/stat : 12924 (pcs.big) R 12922 12924 12887 0 -1 4194304 929 656 0 0 8 0 0 0 23 0 1 0 59758048 5206016 560 996147200 134512640 135215973 4294956304 18446744073709551615 134773314 0 0 4096 0 0 0 0 17 1 0 0
/proc/12924/statm: 1271 560 384 171 0 196 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5084

[startup+0.301057 s]
/proc/loadavg: 1.93 2.00 1.99 4/81 12924
/proc/meminfo: memFree=1491032/2055920 swapFree=4192812/4192956
[pid=12924] ppid=12922 vsize=7028 CPUtime=0.27
/proc/12924/stat : 12924 (pcs.big) R 12922 12924 12887 0 -1 4194304 1462 656 0 0 27 0 0 0 25 0 1 0 59758048 7196672 1060 996147200 134512640 135215973 4294956304 18446744073709551615 134597671 0 0 4096 0 0 0 0 17 1 0 0
/proc/12924/statm: 1757 1060 408 171 0 682 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 7028

[startup+0.701115 s]
/proc/loadavg: 1.93 2.00 1.99 4/81 12924
/proc/meminfo: memFree=1491032/2055920 swapFree=4192812/4192956
[pid=12924] ppid=12922 vsize=7556 CPUtime=0.67
/proc/12924/stat : 12924 (pcs.big) R 12922 12924 12887 0 -1 4194304 1576 656 0 0 67 0 0 0 25 0 1 0 59758048 7737344 1174 996147200 134512640 135215973 4294956304 18446744073709551615 134599875 0 0 4096 0 0 0 0 17 1 0 0
/proc/12924/statm: 1889 1174 408 171 0 814 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 7556

[startup+1.50123 s]
/proc/loadavg: 1.93 2.00 1.99 3/82 12929
/proc/meminfo: memFree=1486864/2055920 swapFree=4192812/4192956
[pid=12924] ppid=12922 vsize=9864 CPUtime=1.46
/proc/12924/stat : 12924 (pcs.big) R 12922 12924 12887 0 -1 4194304 2164 656 0 0 146 0 0 0 25 0 1 0 59758048 10100736 1762 996147200 134512640 135215973 4294956304 18446744073709551615 4158961145 0 0 4096 0 0 0 0 17 1 0 0
/proc/12924/statm: 2466 1762 408 171 0 1391 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 9864

[startup+3.10146 s]
/proc/loadavg: 1.93 2.00 1.99 4/82 12929
/proc/meminfo: memFree=1484176/2055920 swapFree=4192812/4192956
[pid=12924] ppid=12922 vsize=13408 CPUtime=3.06
/proc/12924/stat : 12924 (pcs.big) R 12922 12924 12887 0 -1 4194304 3062 656 0 0 305 1 0 0 25 0 1 0 59758048 13729792 2660 996147200 134512640 135215973 4294956304 18446744073709551615 5111510 0 0 4096 0 0 0 0 17 1 0 0
/proc/12924/statm: 3352 2660 408 171 0 2277 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 13408

[startup+6.30193 s]
/proc/loadavg: 1.93 2.00 1.99 3/82 12929
/proc/meminfo: memFree=1475800/2055920 swapFree=4192812/4192956
[pid=12924] ppid=12922 vsize=21488 CPUtime=6.22
/proc/12924/stat : 12924 (pcs.big) R 12922 12924 12887 0 -1 4194304 5117 656 0 0 620 2 0 0 25 0 1 0 59758048 22003712 4682 996147200 134512640 135215973 4294956304 18446744073709551615 4158960064 0 0 4096 0 0 0 0 17 1 0 0
/proc/12924/statm: 5372 4682 408 171 0 4297 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 21488

[startup+12.7019 s]
/proc/loadavg: 1.94 2.00 1.99 3/82 12929
/proc/meminfo: memFree=1458392/2055920 swapFree=4192812/4192956
[pid=12924] ppid=12922 vsize=38840 CPUtime=12.56
/proc/12924/stat : 12924 (pcs.big) R 12922 12924 12887 0 -1 4194304 9503 656 0 0 1252 4 0 0 25 0 1 0 59758048 39772160 8874 996147200 134512640 135215973 4294956304 18446744073709551615 134599873 0 0 4096 0 0 0 0 17 1 0 0
/proc/12924/statm: 9710 8874 408 171 0 8635 0
Current children cumulated CPU time (s) 12.56
Current children cumulated vsize (KiB) 38840

[startup+25.5017 s]
/proc/loadavg: 1.95 2.00 1.99 3/82 12929
/proc/meminfo: memFree=1428568/2055920 swapFree=4192812/4192956
[pid=12924] ppid=12922 vsize=68228 CPUtime=25.24
/proc/12924/stat : 12924 (pcs.big) R 12922 12924 12887 0 -1 4194304 17000 656 0 0 2517 7 0 0 25 0 1 0 59758048 69865472 16114 996147200 134512640 135215973 4294956304 18446744073709551615 134590027 0 0 4096 0 0 0 0 17 1 0 0
/proc/12924/statm: 17057 16114 408 171 0 15982 0
Current children cumulated CPU time (s) 25.24
Current children cumulated vsize (KiB) 68228

[startup+51.1014 s]
/proc/loadavg: 1.97 2.00 1.99 3/82 12929
/proc/meminfo: memFree=1363672/2055920 swapFree=4192812/4192956
[pid=12924] ppid=12922 vsize=134768 CPUtime=50.6
/proc/12924/stat : 12924 (pcs.big) R 12922 12924 12887 0 -1 4194304 33912 656 0 0 5044 16 0 0 25 0 1 0 59758048 138002432 32448 996147200 134512640 135215973 4294956304 18446744073709551615 134589766 0 0 4096 0 0 0 0 17 1 0 0
/proc/12924/statm: 33692 32448 408 171 0 32617 0
Current children cumulated CPU time (s) 50.6
Current children cumulated vsize (KiB) 134768

[startup+102.307 s]
/proc/loadavg: 1.98 2.00 1.99 3/82 12929
/proc/meminfo: memFree=1245528/2055920 swapFree=4192812/4192956
[pid=12924] ppid=12922 vsize=253428 CPUtime=101.32
/proc/12924/stat : 12924 (pcs.big) R 12922 12924 12887 0 -1 4194304 64168 656 0 0 10101 31 0 0 25 0 1 0 59758048 259510272 61679 996147200 134512640 135215973 4294956304 18446744073709551615 134585388 0 0 4096 0 0 0 0 17 1 0 0
/proc/12924/statm: 63357 61679 408 171 0 62282 0
Current children cumulated CPU time (s) 101.32
Current children cumulated vsize (KiB) 253428

[startup+162.301 s]
/proc/loadavg: 1.99 2.00 1.99 3/82 12931
/proc/meminfo: memFree=1097880/2055920 swapFree=4192812/4192956
[pid=12924] ppid=12922 vsize=399524 CPUtime=160.75
/proc/12924/stat : 12924 (pcs.big) R 12922 12924 12887 0 -1 4194304 101353 656 0 0 16026 49 0 0 25 0 1 0 59758048 409112576 98735 996147200 134512640 135215973 4294956304 18446744073709551615 134648275 0 0 4096 0 0 0 0 17 1 0 0
/proc/12924/statm: 99881 98735 408 171 0 98806 0
Current children cumulated CPU time (s) 160.75
Current children cumulated vsize (KiB) 399524

[startup+222.302 s]
/proc/loadavg: 1.99 2.00 1.99 3/82 12931
/proc/meminfo: memFree=946392/2055920 swapFree=4192812/4192956
[pid=12924] ppid=12922 vsize=555296 CPUtime=220.19
/proc/12924/stat : 12924 (pcs.big) R 12922 12924 12887 0 -1 4194304 140931 656 0 0 21949 70 0 0 25 0 1 0 59758048 568623104 136264 996147200 134512640 135215973 4294956304 18446744073709551615 134934405 0 0 4096 0 0 0 0 17 1 0 0
/proc/12924/statm: 138824 136264 408 171 0 137749 0
Current children cumulated CPU time (s) 220.19
Current children cumulated vsize (KiB) 555296

[startup+282.302 s]
/proc/loadavg: 1.99 2.00 1.99 3/82 12931
/proc/meminfo: memFree=806616/2055920 swapFree=4192812/4192956
[pid=12924] ppid=12922 vsize=694108 CPUtime=279.63
/proc/12924/stat : 12924 (pcs.big) R 12922 12924 12887 0 -1 4194304 176256 656 0 0 27874 89 0 0 25 0 1 0 59758048 710766592 171589 996147200 134512640 135215973 4294956304 18446744073709551615 134599868 0 0 4096 0 0 0 0 17 1 0 0
/proc/12924/statm: 173527 171589 408 171 0 172452 0
Current children cumulated CPU time (s) 279.63
Current children cumulated vsize (KiB) 694108

[startup+342.301 s]
/proc/loadavg: 1.99 2.00 1.99 3/82 12931
/proc/meminfo: memFree=666392/2055920 swapFree=4192812/4192956
[pid=12924] ppid=12922 vsize=830816 CPUtime=339.06
/proc/12924/stat : 12924 (pcs.big) R 12922 12924 12887 0 -1 4194304 211093 656 0 0 33801 105 0 0 25 0 1 0 59758048 850755584 206169 996147200 134512640 135215973 4294956304 18446744073709551615 5144149 0 0 4096 0 0 0 0 17 1 0 0
/proc/12924/statm: 207704 206169 408 171 0 206629 0
Current children cumulated CPU time (s) 339.06
Current children cumulated vsize (KiB) 830816



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+388.401 s]
/proc/loadavg: 1.99 2.00 1.99 3/82 12931
/proc/meminfo: memFree=573080/2055920 swapFree=4192812/4192956
[pid=12924] ppid=12922 vsize=921644 CPUtime=384.72
/proc/12924/stat : 12924 (pcs.big) R 12922 12924 12887 0 -1 4194304 234258 656 0 0 38357 115 0 0 25 0 1 0 59758048 943763456 229334 996147200 134512640 135215973 4294956304 18446744073709551615 134609879 0 0 4096 0 0 0 0 17 1 0 0
/proc/12924/statm: 230411 229334 408 171 0 229336 0
Current children cumulated CPU time (s) 384.72
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+388.508 s]
/proc/loadavg: 1.99 2.00 1.99 3/82 12931
/proc/meminfo: memFree=573080/2055920 swapFree=4192812/4192956
[pid=12924] ppid=12922 vsize=0 CPUtime=384.82
/proc/12924/stat : 12924 (pcs.big) R 12922 12924 12887 0 -1 4195332 234258 656 0 0 38357 125 0 0 25 0 1 0 59758048 0 0 996147200 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/12924/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 384.82
Current children cumulated vsize (KiB) 0

Child ended because it received signal 15 (SIGTERM)
Real time (s): 388.551
CPU time (s): 384.882
CPU user time (s): 383.578
CPU system time (s): 1.3048
CPU usage (%): 99.0558
Max. virtual memory (cumulated for all children) (KiB): 921644

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 383.578
system time used= 1.3048
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 234914
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= 15724

runsolver used 0.461929 second user time and 1.3168 second system time

The end

Launcher Data 

Begin job on node22 at 2009-07-16 08:48:36
IDJOB=2086884
IDBENCH=58655
IDSOLVER=734
FILE ID=node22/2086884-1247726915
PBS_JOBID= 9521636
Free space on /tmp= 66384 MiB

SOLVER NAME= pcs-restart 0.2.restart
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-2086884-1247726915/watcher-2086884-1247726915 -o /tmp/evaluation-result-2086884-1247726915/solver-2086884-1247726915 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1902175423 HOME/instance-2086884-1247726915.xml

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

MD5SUM BENCH= f28667d5c0e930a5c10077f974b3889b
RANDOM SEED=1902175423

node22.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		: 3000.278
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		: 3000.278
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	: 5636.09
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1491512 kB
Buffers:         89780 kB
Cached:         344604 kB
SwapCached:          0 kB
Active:          93016 kB
Inactive:       385172 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1491512 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2356 kB
Writeback:           0 kB
Mapped:          64276 kB
Slab:            71332 kB
Committed_AS:   617932 kB
PageTables:       1856 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= 66384 MiB
End job on node22 at 2009-07-16 08:55:06