Trace number 2086928

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) 465.504 469.742

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
0.18/0.20	c Seed is 1055214662
0.18/0.20	c Constructing HOME/instance-2086928-1247727000.xml 
0.18/0.20	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)
0.18/0.20	c  with 2065 constraints
0.18/0.20	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-2086928-1247727000/watcher-2086928-1247727000 -o /tmp/evaluation-result-2086928-1247727000/solver-2086928-1247727000 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1055214662 HOME/instance-2086928-1247727000.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 1.97 1.99 4/81 14313
/proc/meminfo: memFree=1480864/2055920 swapFree=4192812/4192956
[pid=14313] ppid=14311 vsize=5356 CPUtime=0
/proc/14313/stat : 14313 (pcssolve) R 14311 14313 14276 0 -1 4194304 268 0 0 0 0 0 0 0 20 0 1 0 59766071 5484544 236 996147200 4194304 4889804 548682068800 18446744073709551615 4459589 0 0 4100 65536 0 0 0 17 1 0 0
/proc/14313/statm: 1339 236 197 169 0 50 0

[startup+0.10122 s]
/proc/loadavg: 1.85 1.97 1.99 4/81 14313
/proc/meminfo: memFree=1480864/2055920 swapFree=4192812/4192956
[pid=14313] ppid=14311 vsize=5208 CPUtime=0.08
/proc/14313/stat : 14313 (pcs.big) R 14311 14313 14276 0 -1 4194304 970 656 0 0 8 0 0 0 18 0 1 0 59766071 5332992 601 996147200 134512640 135215973 4294956304 18446744073709551615 134923831 0 0 4096 0 0 0 0 17 1 0 0
/proc/14313/statm: 1302 601 406 171 0 227 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5208

[startup+0.202237 s]
/proc/loadavg: 1.85 1.97 1.99 4/81 14313
/proc/meminfo: memFree=1480864/2055920 swapFree=4192812/4192956
[pid=14313] ppid=14311 vsize=5528 CPUtime=0.18
/proc/14313/stat : 14313 (pcs.big) R 14311 14313 14276 0 -1 4194304 1079 656 0 0 18 0 0 0 18 0 1 0 59766071 5660672 710 996147200 134512640 135215973 4294956304 18446744073709551615 134599882 0 0 4096 0 0 0 0 17 1 0 0
/proc/14313/statm: 1382 710 408 171 0 307 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 5528

[startup+0.301249 s]
/proc/loadavg: 1.85 1.97 1.99 4/81 14313
/proc/meminfo: memFree=1480864/2055920 swapFree=4192812/4192956
[pid=14313] ppid=14311 vsize=5788 CPUtime=0.28
/proc/14313/stat : 14313 (pcs.big) R 14311 14313 14276 0 -1 4194304 1116 656 0 0 28 0 0 0 19 0 1 0 59766071 5926912 747 996147200 134512640 135215973 4294956304 18446744073709551615 134591344 0 0 4096 0 0 0 0 17 1 0 0
/proc/14313/statm: 1447 747 408 171 0 372 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 5788

[startup+0.701308 s]
/proc/loadavg: 1.85 1.97 1.99 4/81 14313
/proc/meminfo: memFree=1480864/2055920 swapFree=4192812/4192956
[pid=14313] ppid=14311 vsize=6736 CPUtime=0.67
/proc/14313/stat : 14313 (pcs.big) R 14311 14313 14276 0 -1 4194304 1344 656 0 0 67 0 0 0 23 0 1 0 59766071 6897664 975 996147200 134512640 135215973 4294956304 18446744073709551615 134648323 0 0 4096 0 0 0 0 17 1 0 0
/proc/14313/statm: 1684 975 408 171 0 609 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 6736

[startup+1.50142 s]
/proc/loadavg: 1.85 1.97 1.99 3/82 14318
/proc/meminfo: memFree=1477712/2055920 swapFree=4192812/4192956
[pid=14313] ppid=14311 vsize=8308 CPUtime=1.47
/proc/14313/stat : 14313 (pcs.big) R 14311 14313 14276 0 -1 4194304 1745 656 0 0 147 0 0 0 25 0 1 0 59766071 8507392 1376 996147200 134512640 135215973 4294956304 18446744073709551615 134902388 0 0 4096 0 0 0 0 17 1 0 0
/proc/14313/statm: 2077 1376 408 171 0 1002 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 8308

[startup+3.10166 s]
/proc/loadavg: 1.85 1.97 1.99 3/82 14318
/proc/meminfo: memFree=1475216/2055920 swapFree=4192812/4192956
[pid=14313] ppid=14311 vsize=11708 CPUtime=3.06
/proc/14313/stat : 14313 (pcs.big) R 14311 14313 14276 0 -1 4194304 2622 656 0 0 305 1 0 0 25 0 1 0 59766071 11988992 2220 996147200 134512640 135215973 4294956304 18446744073709551615 134588597 0 0 4096 0 0 0 0 17 1 0 0
/proc/14313/statm: 2927 2220 408 171 0 1852 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 11708

[startup+6.30113 s]
/proc/loadavg: 1.86 1.97 1.99 3/82 14318
/proc/meminfo: memFree=1468176/2055920 swapFree=4192812/4192956
[pid=14313] ppid=14311 vsize=18368 CPUtime=6.22
/proc/14313/stat : 14313 (pcs.big) R 14311 14313 14276 0 -1 4194304 4334 656 0 0 621 1 0 0 25 0 1 0 59766071 18808832 3867 996147200 134512640 135215973 4294956304 18446744073709551615 4158960027 0 0 4096 0 0 0 0 17 1 0 0
/proc/14313/statm: 4592 3867 408 171 0 3517 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 18368

[startup+12.7011 s]
/proc/loadavg: 1.87 1.97 1.99 3/82 14318
/proc/meminfo: memFree=1454168/2055920 swapFree=4192812/4192956
[pid=14313] ppid=14311 vsize=32100 CPUtime=12.56
/proc/14313/stat : 14313 (pcs.big) R 14311 14313 14276 0 -1 4194304 7885 656 0 0 1253 3 0 0 25 0 1 0 59766071 32870400 7289 996147200 134512640 135215973 4294956304 18446744073709551615 134590083 0 0 4096 0 0 0 0 17 1 0 0
/proc/14313/statm: 8025 7289 408 171 0 6950 0
Current children cumulated CPU time (s) 12.56
Current children cumulated vsize (KiB) 32100

[startup+25.5029 s]
/proc/loadavg: 1.90 1.97 1.99 3/82 14318
/proc/meminfo: memFree=1425112/2055920 swapFree=4192812/4192956
[pid=14313] ppid=14311 vsize=60640 CPUtime=25.24
/proc/14313/stat : 14313 (pcs.big) R 14311 14313 14276 0 -1 4194304 15202 656 0 0 2519 5 0 0 25 0 1 0 59766071 62095360 14316 996147200 134512640 135215973 4294956304 18446744073709551615 4158960000 0 0 4096 0 0 0 0 17 1 0 0
/proc/14313/statm: 15160 14316 408 171 0 14085 0
Current children cumulated CPU time (s) 25.24
Current children cumulated vsize (KiB) 60640

[startup+51.1017 s]
/proc/loadavg: 1.93 1.97 1.99 3/82 14318
/proc/meminfo: memFree=1371544/2055920 swapFree=4192812/4192956
[pid=14313] ppid=14311 vsize=115508 CPUtime=50.6
/proc/14313/stat : 14313 (pcs.big) R 14311 14313 14276 0 -1 4194304 29316 656 0 0 5049 11 0 0 25 0 1 0 59766071 118280192 27852 996147200 134512640 135215973 4294956304 18446744073709551615 4158960021 0 0 4096 0 0 0 0 17 1 0 0
/proc/14313/statm: 28877 27852 408 171 0 27802 0
Current children cumulated CPU time (s) 50.6
Current children cumulated vsize (KiB) 115508

[startup+102.301 s]
/proc/loadavg: 1.97 1.97 1.99 3/82 14320
/proc/meminfo: memFree=1264280/2055920 swapFree=4192812/4192956
[pid=14313] ppid=14311 vsize=223136 CPUtime=101.31
/proc/14313/stat : 14313 (pcs.big) R 14311 14313 14276 0 -1 4194304 56962 656 0 0 10106 25 0 0 25 0 1 0 59766071 228491264 54344 996147200 134512640 135215973 4294956304 18446744073709551615 134908200 0 0 4096 0 0 0 0 17 1 0 0
/proc/14313/statm: 55784 54344 408 171 0 54709 0
Current children cumulated CPU time (s) 101.31
Current children cumulated vsize (KiB) 223136

[startup+162.303 s]
/proc/loadavg: 1.99 1.97 1.99 3/82 14320
/proc/meminfo: memFree=1144792/2055920 swapFree=4192812/4192956
[pid=14313] ppid=14311 vsize=347976 CPUtime=160.75
/proc/14313/stat : 14313 (pcs.big) R 14311 14313 14276 0 -1 4194304 89024 656 0 0 16034 41 0 0 25 0 1 0 59766071 356327424 84357 996147200 134512640 135215973 4294956304 18446744073709551615 7450456 0 0 4096 0 0 0 0 17 1 0 0
/proc/14313/statm: 86994 84357 408 171 0 85919 0
Current children cumulated CPU time (s) 160.75
Current children cumulated vsize (KiB) 347976

[startup+222.307 s]
/proc/loadavg: 1.99 1.97 1.99 3/82 14320
/proc/meminfo: memFree=1031256/2055920 swapFree=4192812/4192956
[pid=14313] ppid=14311 vsize=457192 CPUtime=220.18
/proc/14313/stat : 14313 (pcs.big) R 14311 14313 14276 0 -1 4194304 117165 656 0 0 21965 53 0 0 25 0 1 0 59766071 468164608 112498 996147200 134512640 135215973 4294956304 18446744073709551615 134591502 0 0 4096 0 0 0 0 17 1 0 0
/proc/14313/statm: 114298 112498 408 171 0 113223 0
Current children cumulated CPU time (s) 220.18
Current children cumulated vsize (KiB) 457192

[startup+282.301 s]
/proc/loadavg: 1.99 1.97 1.99 3/82 14320
/proc/meminfo: memFree=916632/2055920 swapFree=4192812/4192956
[pid=14313] ppid=14311 vsize=570368 CPUtime=279.62
/proc/14313/stat : 14313 (pcs.big) R 14311 14313 14276 0 -1 4194304 146307 656 0 0 27896 66 0 0 25 0 1 0 59766071 584056832 141383 996147200 134512640 135215973 4294956304 18446744073709551615 134587335 0 0 4096 0 0 0 0 17 1 0 0
/proc/14313/statm: 142592 141383 408 171 0 141517 0
Current children cumulated CPU time (s) 279.62
Current children cumulated vsize (KiB) 570368

[startup+342.301 s]
/proc/loadavg: 1.99 1.97 1.99 3/82 14320
/proc/meminfo: memFree=807448/2055920 swapFree=4192812/4192956
[pid=14313] ppid=14311 vsize=691340 CPUtime=339.05
/proc/14313/stat : 14313 (pcs.big) R 14311 14313 14276 0 -1 4194304 177366 656 0 0 33823 82 0 0 25 0 1 0 59766071 707932160 168345 996147200 134512640 135215973 4294956304 18446744073709551615 134585800 0 0 4096 0 0 0 0 17 1 0 0
/proc/14313/statm: 172835 168345 408 171 0 171760 0
Current children cumulated CPU time (s) 339.05
Current children cumulated vsize (KiB) 691340

[startup+402.302 s]
/proc/loadavg: 2.07 1.99 1.99 3/82 14320
/proc/meminfo: memFree=699736/2055920 swapFree=4192812/4192956
[pid=14313] ppid=14311 vsize=796504 CPUtime=398.49
/proc/14313/stat : 14313 (pcs.big) R 14311 14313 14276 0 -1 4194304 204500 656 0 0 39756 93 0 0 25 0 1 0 59766071 815620096 195479 996147200 134512640 135215973 4294956304 18446744073709551615 134588239 0 0 4096 0 0 0 0 17 1 0 0
/proc/14313/statm: 199126 195479 408 171 0 198051 0
Current children cumulated CPU time (s) 398.49
Current children cumulated vsize (KiB) 796504

[startup+462.303 s]
/proc/loadavg: 1.99 1.98 1.99 4/73 14354
/proc/meminfo: memFree=581104/2055920 swapFree=4192812/4192956
[pid=14313] ppid=14311 vsize=907916 CPUtime=458.05
/proc/14313/stat : 14313 (pcs.big) R 14311 14313 14276 0 -1 4194304 233203 656 0 0 45697 108 0 0 25 0 1 0 59766071 929705984 224182 996147200 134512640 135215973 4294956304 18446744073709551615 4158960112 0 0 4096 0 0 0 0 17 0 0 0
/proc/14313/statm: 226979 224182 408 171 0 225904 0
Current children cumulated CPU time (s) 458.05
Current children cumulated vsize (KiB) 907916



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+469.602 s]
/proc/loadavg: 1.99 1.98 1.99 3/73 14354
/proc/meminfo: memFree=556400/2055920 swapFree=4192812/4192956
[pid=14313] ppid=14311 vsize=921796 CPUtime=465.35
/proc/14313/stat : 14313 (pcs.big) R 14311 14313 14276 0 -1 4194304 236791 656 0 0 46426 109 0 0 25 0 1 0 59766071 943919104 227770 996147200 134512640 135215973 4294956304 18446744073709551615 134581708 0 0 4096 0 0 0 0 17 0 0 0
/proc/14313/statm: 230449 227770 408 171 0 229374 0
Current children cumulated CPU time (s) 465.35
Current children cumulated vsize (KiB) 921796

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

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

[startup+469.707 s]
/proc/loadavg: 1.99 1.98 1.99 3/74 14355
/proc/meminfo: memFree=1229160/2055920 swapFree=4192812/4192956
[pid=14313] ppid=14311 vsize=0 CPUtime=465.46
/proc/14313/stat : 14313 (pcs.big) R 14311 14313 14276 0 -1 4195332 236791 656 0 0 46426 120 0 0 25 0 1 0 59766071 0 0 996147200 0 0 0 0 0 0 0 4096 0 0 0 0 17 0 0 0
/proc/14313/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 465.46
Current children cumulated vsize (KiB) 0

Child ended because it received signal 15 (SIGTERM)
Real time (s): 469.742
CPU time (s): 465.504
CPU user time (s): 464.267
CPU system time (s): 1.23681
CPU usage (%): 99.0977
Max. virtual memory (cumulated for all children) (KiB): 921796

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 464.267
system time used= 1.23681
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 237447
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= 18391

runsolver used 0.567913 second user time and 1.55876 second system time

The end

Launcher Data 

Begin job on node30 at 2009-07-16 08:50:00
IDJOB=2086928
IDBENCH=58660
IDSOLVER=734
FILE ID=node30/2086928-1247727000
PBS_JOBID= 9521639
Free space on /tmp= 66288 MiB

SOLVER NAME= pcs-restart 0.2.restart
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-2086928-1247727000/watcher-2086928-1247727000 -o /tmp/evaluation-result-2086928-1247727000/solver-2086928-1247727000 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1055214662 HOME/instance-2086928-1247727000.xml

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

MD5SUM BENCH= fd33636e90e1af45a8ce1a4c6ef68b7c
RANDOM SEED=1055214662

node30.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		: 3000.277
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		: 3000.277
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:       1481344 kB
Buffers:         80896 kB
Cached:         369468 kB
SwapCached:          0 kB
Active:          87816 kB
Inactive:       403204 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1481344 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2160 kB
Writeback:           0 kB
Mapped:          61136 kB
Slab:            68912 kB
Committed_AS:   580548 kB
PageTables:       1836 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= 66284 MiB
End job on node30 at 2009-07-16 08:57:51