Trace number 2086927

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) 462.46 464.746

General information on the benchmark

Namecsp/langford4/
normalized-langford-4-16.xml
MD5SUMfd33636e90e1af45a8ce1a4c6ef68b7c
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 benchmark156.906
Satisfiable
(Un)Satisfiability was proved
Number of variables64
Number of constraints2064
Maximum constraint arity2
Maximum domain size64
Number of constraints which are defined in extension0
Number of constraints which are defined in intension2064
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
0.17/0.21	c Seed is 673617675
0.17/0.21	c Constructing HOME/instance-2086927-1247726973.xml 
0.17/0.21	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,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,V0)
0.17/0.21	c  with 2065 constraints
0.17/0.21	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-2086927-1247726973/watcher-2086927-1247726973 -o /tmp/evaluation-result-2086927-1247726973/solver-2086927-1247726973 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 673617675 HOME/instance-2086927-1247726973.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: 1.85 1.95 1.98 4/81 16321
/proc/meminfo: memFree=1391120/2055920 swapFree=4192812/4192956
[pid=16321] ppid=16319 vsize=5356 CPUtime=0
/proc/16321/stat : 16321 (pcssolve) R 16319 16321 16284 0 -1 4194304 273 0 0 0 0 0 0 0 20 0 1 0 59757624 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 224627583647 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/16321/statm: 1339 241 200 169 0 50 0
[pid=16322] ppid=16321 vsize=5356 CPUtime=0
/proc/16322/stat : 16322 (pcssolve) R 16321 16321 16284 0 -1 4194368 0 0 0 0 0 0 0 0 20 0 1 0 59757624 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 224627583647 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/16322/statm: 1339 241 200 169 0 50 0

[startup+0.121394 s]
/proc/loadavg: 1.85 1.95 1.98 4/81 16321
/proc/meminfo: memFree=1391120/2055920 swapFree=4192812/4192956
[pid=16321] ppid=16319 vsize=5528 CPUtime=0.09
/proc/16321/stat : 16321 (pcs.big) R 16319 16321 16284 0 -1 4194304 1069 656 0 0 9 0 0 0 18 0 1 0 59757624 5660672 700 996147200 134512640 135215973 4294956304 18446744073709551615 134609802 0 0 4096 0 0 0 0 17 1 0 0
/proc/16321/statm: 1382 700 408 171 0 307 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5528

[startup+0.201404 s]
/proc/loadavg: 1.85 1.95 1.98 4/81 16321
/proc/meminfo: memFree=1391120/2055920 swapFree=4192812/4192956
[pid=16321] ppid=16319 vsize=5528 CPUtime=0.17
/proc/16321/stat : 16321 (pcs.big) R 16319 16321 16284 0 -1 4194304 1078 656 0 0 17 0 0 0 18 0 1 0 59757624 5660672 709 996147200 134512640 135215973 4294956304 18446744073709551615 4245115 0 0 4096 0 0 0 0 17 1 0 0
/proc/16321/statm: 1382 709 408 171 0 307 0
Current children cumulated CPU time (s) 0.17
Current children cumulated vsize (KiB) 5528

[startup+0.301418 s]
/proc/loadavg: 1.85 1.95 1.98 4/81 16321
/proc/meminfo: memFree=1391120/2055920 swapFree=4192812/4192956
[pid=16321] ppid=16319 vsize=5660 CPUtime=0.27
/proc/16321/stat : 16321 (pcs.big) R 16319 16321 16284 0 -1 4194304 1113 656 0 0 27 0 0 0 19 0 1 0 59757624 5795840 744 996147200 134512640 135215973 4294956304 18446744073709551615 4245115 0 0 4096 0 0 0 0 17 1 0 0
/proc/16321/statm: 1415 744 408 171 0 340 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 5660

[startup+0.701475 s]
/proc/loadavg: 1.85 1.95 1.98 4/81 16321
/proc/meminfo: memFree=1391120/2055920 swapFree=4192812/4192956
[pid=16321] ppid=16319 vsize=6708 CPUtime=0.67
/proc/16321/stat : 16321 (pcs.big) R 16319 16321 16284 0 -1 4194304 1350 656 0 0 67 0 0 0 23 0 1 0 59757624 6868992 981 996147200 134512640 135215973 4294956304 18446744073709551615 134588316 0 0 4096 0 0 0 0 17 1 0 0
/proc/16321/statm: 1677 981 408 171 0 602 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 6708

[startup+1.50159 s]
/proc/loadavg: 1.85 1.95 1.98 3/82 16326
/proc/meminfo: memFree=1387912/2055920 swapFree=4192812/4192956
[pid=16321] ppid=16319 vsize=8416 CPUtime=1.46
/proc/16321/stat : 16321 (pcs.big) R 16319 16321 16284 0 -1 4194304 1759 656 0 0 146 0 0 0 25 0 1 0 59757624 8617984 1390 996147200 134512640 135215973 4294956304 18446744073709551615 134583557 0 0 4096 0 0 0 0 17 1 0 0
/proc/16321/statm: 2104 1390 408 171 0 1029 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 8416

[startup+3.10182 s]
/proc/loadavg: 1.85 1.95 1.98 3/82 16326
/proc/meminfo: memFree=1385416/2055920 swapFree=4192812/4192956
[pid=16321] ppid=16319 vsize=11828 CPUtime=3.06
/proc/16321/stat : 16321 (pcs.big) R 16319 16321 16284 0 -1 4194304 2661 656 0 0 305 1 0 0 25 0 1 0 59757624 12111872 2259 996147200 134512640 135215973 4294956304 18446744073709551615 4245115 0 0 4096 0 0 0 0 17 1 0 0
/proc/16321/statm: 2957 2259 408 171 0 1882 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 11828

[startup+6.30227 s]
/proc/loadavg: 1.86 1.95 1.98 3/82 16326
/proc/meminfo: memFree=1378056/2055920 swapFree=4192812/4192956
[pid=16321] ppid=16319 vsize=18636 CPUtime=6.25
/proc/16321/stat : 16321 (pcs.big) R 16319 16321 16284 0 -1 4194304 4415 656 0 0 623 2 0 0 25 0 1 0 59757624 19083264 3948 996147200 134512640 135215973 4294956304 18446744073709551615 134532714 0 0 4096 0 0 0 0 17 1 0 0
/proc/16321/statm: 4659 3948 408 171 0 3584 0
Current children cumulated CPU time (s) 6.25
Current children cumulated vsize (KiB) 18636

[startup+12.7012 s]
/proc/loadavg: 1.87 1.95 1.98 3/82 16326
/proc/meminfo: memFree=1364232/2055920 swapFree=4192812/4192956
[pid=16321] ppid=16319 vsize=32444 CPUtime=12.61
/proc/16321/stat : 16321 (pcs.big) R 16319 16321 16284 0 -1 4194304 7943 656 0 0 1257 4 0 0 25 0 1 0 59757624 33222656 7347 996147200 134512640 135215973 4294956304 18446744073709551615 4275839 0 0 4096 0 0 0 0 17 1 0 0
/proc/16321/statm: 8111 7347 408 171 0 7036 0
Current children cumulated CPU time (s) 12.61
Current children cumulated vsize (KiB) 32444

[startup+25.502 s]
/proc/loadavg: 1.90 1.96 1.98 3/82 16326
/proc/meminfo: memFree=1335240/2055920 swapFree=4192812/4192956
[pid=16321] ppid=16319 vsize=60820 CPUtime=25.35
/proc/16321/stat : 16321 (pcs.big) R 16319 16321 16284 0 -1 4194304 15258 656 0 0 2526 9 0 0 25 0 1 0 59757624 62279680 14372 996147200 134512640 135215973 4294956304 18446744073709551615 134585388 0 0 4096 0 0 0 0 17 1 0 0
/proc/16321/statm: 15205 14372 408 171 0 14130 0
Current children cumulated CPU time (s) 25.35
Current children cumulated vsize (KiB) 60820

[startup+51.1016 s]
/proc/loadavg: 1.93 1.96 1.98 3/82 16326
/proc/meminfo: memFree=1283272/2055920 swapFree=4192812/4192956
[pid=16321] ppid=16319 vsize=113920 CPUtime=50.82
/proc/16321/stat : 16321 (pcs.big) R 16319 16321 16284 0 -1 4194304 28926 656 0 0 5065 17 0 0 25 0 1 0 59757624 116654080 27462 996147200 134512640 135215973 4294956304 18446744073709551615 134594155 0 0 4096 0 0 0 0 17 1 0 0
/proc/16321/statm: 28480 27462 408 171 0 27405 0
Current children cumulated CPU time (s) 50.82
Current children cumulated vsize (KiB) 113920

[startup+102.302 s]
/proc/loadavg: 1.97 1.96 1.98 3/82 16326
/proc/meminfo: memFree=1178120/2055920 swapFree=4192812/4192956
[pid=16321] ppid=16319 vsize=219568 CPUtime=101.78
/proc/16321/stat : 16321 (pcs.big) R 16319 16321 16284 0 -1 4194304 56083 656 0 0 10147 31 0 0 25 0 1 0 59757624 224837632 53465 996147200 134512640 135215973 4294956304 18446744073709551615 134585409 0 0 4096 0 0 0 0 17 1 0 0
/proc/16321/statm: 54892 53465 408 171 0 53817 0
Current children cumulated CPU time (s) 101.78
Current children cumulated vsize (KiB) 219568

[startup+162.301 s]
/proc/loadavg: 1.99 1.97 1.98 3/82 16326
/proc/meminfo: memFree=1059272/2055920 swapFree=4192812/4192956
[pid=16321] ppid=16319 vsize=344172 CPUtime=161.49
/proc/16321/stat : 16321 (pcs.big) R 16319 16321 16284 0 -1 4194304 88040 656 0 0 16098 51 0 0 25 0 1 0 59757624 352432128 83373 996147200 134512640 135215973 4294956304 18446744073709551615 4159345924 0 0 4096 0 0 0 0 17 1 0 0
/proc/16321/statm: 86043 83373 408 171 0 84968 0
Current children cumulated CPU time (s) 161.49
Current children cumulated vsize (KiB) 344172

[startup+222.307 s]
/proc/loadavg: 1.99 1.97 1.98 3/82 16328
/proc/meminfo: memFree=943944/2055920 swapFree=4192812/4192956
[pid=16321] ppid=16319 vsize=455156 CPUtime=221.19
/proc/16321/stat : 16321 (pcs.big) R 16319 16321 16284 0 -1 4194304 116583 656 0 0 22053 66 0 0 25 0 1 0 59757624 466079744 111916 996147200 134512640 135215973 4294956304 18446744073709551615 134599868 0 0 4096 0 0 0 0 17 1 0 0
/proc/16321/statm: 113789 111916 408 171 0 112714 0
Current children cumulated CPU time (s) 221.19
Current children cumulated vsize (KiB) 455156

[startup+282.301 s]
/proc/loadavg: 1.99 1.97 1.98 3/82 16328
/proc/meminfo: memFree=829064/2055920 swapFree=4192812/4192956
[pid=16321] ppid=16319 vsize=568368 CPUtime=280.9
/proc/16321/stat : 16321 (pcs.big) R 16319 16321 16284 0 -1 4194304 145751 656 0 0 28010 80 0 0 25 0 1 0 59757624 582008832 140827 996147200 134512640 135215973 4294956304 18446744073709551615 4245115 0 0 4096 0 0 0 0 17 1 0 0
/proc/16321/statm: 142092 140827 408 171 0 141017 0
Current children cumulated CPU time (s) 280.9
Current children cumulated vsize (KiB) 568368

[startup+342.302 s]
/proc/loadavg: 1.99 1.97 1.98 3/82 16328
/proc/meminfo: memFree=715464/2055920 swapFree=4192812/4192956
[pid=16321] ppid=16319 vsize=693956 CPUtime=340.6
/proc/16321/stat : 16321 (pcs.big) R 16319 16321 16284 0 -1 4194304 177983 656 0 0 33963 97 0 0 25 0 1 0 59757624 710610944 168962 996147200 134512640 135215973 4294956304 18446744073709551615 134583589 0 0 4096 0 0 0 0 17 1 0 0
/proc/16321/statm: 173489 168962 408 171 0 172414 0
Current children cumulated CPU time (s) 340.6
Current children cumulated vsize (KiB) 693956

[startup+402.301 s]
/proc/loadavg: 1.99 1.97 1.98 3/82 16328
/proc/meminfo: memFree=602632/2055920 swapFree=4192812/4192956
[pid=16321] ppid=16319 vsize=804248 CPUtime=400.31
/proc/16321/stat : 16321 (pcs.big) R 16319 16321 16284 0 -1 4194304 206406 656 0 0 39916 115 0 0 25 0 1 0 59757624 823549952 197385 996147200 134512640 135215973 4294956304 18446744073709551615 4245115 0 0 4096 0 0 0 0 17 1 0 0
/proc/16321/statm: 201062 197385 408 171 0 199987 0
Current children cumulated CPU time (s) 400.31
Current children cumulated vsize (KiB) 804248

[startup+462.302 s]
/proc/loadavg: 1.94 1.96 1.98 3/73 16362
/proc/meminfo: memFree=409816/2055920 swapFree=4192812/4192956
[pid=16321] ppid=16319 vsize=917188 CPUtime=460.02
/proc/16321/stat : 16321 (pcs.big) R 16319 16321 16284 0 -1 4194304 235480 656 0 0 45869 133 0 0 25 0 1 0 59757624 939200512 226459 996147200 134512640 135215973 4294956304 18446744073709551615 4241233 0 0 4096 0 0 0 0 17 0 0 0
/proc/16321/statm: 229297 226459 408 171 0 228222 0
Current children cumulated CPU time (s) 460.02
Current children cumulated vsize (KiB) 917188



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+464.601 s]
/proc/loadavg: 1.95 1.96 1.98 3/73 16362
/proc/meminfo: memFree=404632/2055920 swapFree=4192812/4192956
[pid=16321] ppid=16319 vsize=921640 CPUtime=462.3
/proc/16321/stat : 16321 (pcs.big) R 16319 16321 16284 0 -1 4194304 236626 656 0 0 46097 133 0 0 25 0 1 0 59757624 943759360 227605 996147200 134512640 135215973 4294956304 18446744073709551615 134583604 0 0 4096 0 0 0 0 17 0 0 0
/proc/16321/statm: 230410 227605 408 171 0 229335 0
Current children cumulated CPU time (s) 462.3
Current children cumulated vsize (KiB) 921640

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

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

[startup+464.707 s]
/proc/loadavg: 1.95 1.96 1.98 3/73 16362
/proc/meminfo: memFree=404632/2055920 swapFree=4192812/4192956
[pid=16321] ppid=16319 vsize=0 CPUtime=462.4
/proc/16321/stat : 16321 (pcs.big) R 16319 16321 16284 0 -1 4195332 236626 656 0 0 46097 143 0 0 25 0 1 0 59757624 0 0 996147200 0 0 0 0 0 0 0 4096 0 0 0 0 17 0 0 0
/proc/16321/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 462.4
Current children cumulated vsize (KiB) 0

Child ended because it received signal 15 (SIGTERM)
Real time (s): 464.746
CPU time (s): 462.46
CPU user time (s): 460.98
CPU system time (s): 1.47978
CPU usage (%): 99.508
Max. virtual memory (cumulated for all children) (KiB): 921640

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 460.98
system time used= 1.47978
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 237282
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= 20
involuntary context switches= 13776

runsolver used 0.533918 second user time and 1.16982 second system time

The end

Launcher Data 

Begin job on node49 at 2009-07-16 08:49:33
IDJOB=2086927
IDBENCH=58660
IDSOLVER=733
FILE ID=node49/2086927-1247726973
PBS_JOBID= 9521637
Free space on /tmp= 66376 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/langford4/normalized-langford-4-16.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2086927-1247726973/watcher-2086927-1247726973 -o /tmp/evaluation-result-2086927-1247726973/solver-2086927-1247726973 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 673617675 HOME/instance-2086927-1247726973.xml

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

MD5SUM BENCH= fd33636e90e1af45a8ce1a4c6ef68b7c
RANDOM SEED=673617675

node49.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		: 3000.232
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		: 3000.232
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:       1391600 kB
Buffers:         63192 kB
Cached:         489920 kB
SwapCached:          0 kB
Active:         160004 kB
Inactive:       441480 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1391600 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2224 kB
Writeback:           0 kB
Mapped:          68772 kB
Slab:            47924 kB
Committed_AS:   590240 kB
PageTables:       1908 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66344 MiB
End job on node49 at 2009-07-16 08:57:19