Trace number 2086861

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) 476.123 480.654

General information on the benchmark

Namecsp/langford4/
normalized-langford-4-15.xml
MD5SUM4d1aaa592db27ccaece4a9a11c6999b4
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 benchmark32.1991
Satisfiable
(Un)Satisfiability was proved
Number of variables60
Number of constraints1815
Maximum constraint arity2
Maximum domain size60
Number of constraints which are defined in extension0
Number of constraints which are defined in intension1815
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 2037261913
0.00/0.02	c Constructing HOME/instance-2086861-1247726879.xml 
0.00/0.08	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,V0)
0.00/0.08	c  with 1816 constraints
0.00/0.08	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-2086861-1247726879/watcher-2086861-1247726879 -o /tmp/evaluation-result-2086861-1247726879/solver-2086861-1247726879 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 2037261913 HOME/instance-2086861-1247726879.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: 2.05 2.01 2.00 4/81 15107
/proc/meminfo: memFree=1043448/2055920 swapFree=4192812/4192956
[pid=15107] ppid=15105 vsize=5356 CPUtime=0
/proc/15107/stat : 15107 (pcssolve) R 15105 15107 14922 0 -1 4194304 268 0 0 0 0 0 0 0 20 0 1 0 59751620 5484544 236 996147200 4194304 4889804 548682068800 18446744073709551615 208717413560 0 0 4100 65536 0 0 0 17 1 0 0
/proc/15107/statm: 1339 236 197 169 0 50 0

[startup+0.0185879 s]
/proc/loadavg: 2.05 2.01 2.00 4/81 15107
/proc/meminfo: memFree=1043448/2055920 swapFree=4192812/4192956
[pid=15107] ppid=15105 vsize=2888 CPUtime=0
/proc/15107/stat : 15107 (pcs.big) R 15105 15107 14922 0 -1 4194304 389 656 0 0 0 0 0 0 24 0 1 0 59751620 2957312 35 996147200 134512640 135215973 4294956304 18446744073709551615 10519332 0 0 4096 0 0 0 0 17 1 0 0
/proc/15107/statm: 722 35 25 171 0 10 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 2888

[startup+0.101599 s]
/proc/loadavg: 2.05 2.01 2.00 4/81 15107
/proc/meminfo: memFree=1043448/2055920 swapFree=4192812/4192956
[pid=15107] ppid=15105 vsize=5384 CPUtime=0.08
/proc/15107/stat : 15107 (pcs.big) R 15105 15107 14922 0 -1 4194304 1039 656 0 0 8 0 0 0 23 0 1 0 59751620 5513216 670 996147200 134512640 135215973 4294956304 18446744073709551615 134983084 0 0 4096 0 0 0 0 17 1 0 0
/proc/15107/statm: 1346 670 408 171 0 271 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5384

[startup+0.301618 s]
/proc/loadavg: 2.05 2.01 2.00 4/81 15107
/proc/meminfo: memFree=1043448/2055920 swapFree=4192812/4192956
[pid=15107] ppid=15105 vsize=5516 CPUtime=0.28
/proc/15107/stat : 15107 (pcs.big) R 15105 15107 14922 0 -1 4194304 1078 656 0 0 28 0 0 0 25 0 1 0 59751620 5648384 709 996147200 134512640 135215973 4294956304 18446744073709551615 134590099 0 0 4096 0 0 0 0 17 1 0 0
/proc/15107/statm: 1379 709 408 171 0 304 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 5516

[startup+0.701662 s]
/proc/loadavg: 2.05 2.01 2.00 4/81 15107
/proc/meminfo: memFree=1043448/2055920 swapFree=4192812/4192956
[pid=15107] ppid=15105 vsize=6300 CPUtime=0.68
/proc/15107/stat : 15107 (pcs.big) R 15105 15107 14922 0 -1 4194304 1273 656 0 0 68 0 0 0 25 0 1 0 59751620 6451200 904 996147200 134512640 135215973 4294956304 18446744073709551615 134934078 0 0 4096 0 0 0 0 17 1 0 0
/proc/15107/statm: 1575 904 408 171 0 500 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 6300

[startup+1.50175 s]
/proc/loadavg: 2.05 2.01 2.00 3/82 15112
/proc/meminfo: memFree=1040752/2055920 swapFree=4192812/4192956
[pid=15107] ppid=15105 vsize=8004 CPUtime=1.46
/proc/15107/stat : 15107 (pcs.big) R 15105 15107 14922 0 -1 4194304 1686 656 0 0 146 0 0 0 25 0 1 0 59751620 8196096 1317 996147200 134512640 135215973 4294956304 18446744073709551615 134599830 0 0 4096 0 0 0 0 17 1 0 0
/proc/15107/statm: 2001 1317 408 171 0 926 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 8004

[startup+3.10192 s]
/proc/loadavg: 2.05 2.01 2.00 3/82 15112
/proc/meminfo: memFree=1038256/2055920 swapFree=4192812/4192956
[pid=15107] ppid=15105 vsize=11508 CPUtime=3.05
/proc/15107/stat : 15107 (pcs.big) R 15105 15107 14922 0 -1 4194304 2553 656 0 0 304 1 0 0 25 0 1 0 59751620 11784192 2151 996147200 134512640 135215973 4294956304 18446744073709551615 4158960143 0 0 4096 0 0 0 0 17 1 0 0
/proc/15107/statm: 2877 2151 408 171 0 1802 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 11508

[startup+6.30227 s]
/proc/loadavg: 2.05 2.01 2.00 3/82 15112
/proc/meminfo: memFree=1031280/2055920 swapFree=4192812/4192956
[pid=15107] ppid=15105 vsize=18180 CPUtime=6.22
/proc/15107/stat : 15107 (pcs.big) R 15105 15107 14922 0 -1 4194304 4277 656 0 0 621 1 0 0 25 0 1 0 59751620 18616320 3810 996147200 134512640 135215973 4294956304 18446744073709551615 10948697 0 0 4096 0 0 0 0 17 1 0 0
/proc/15107/statm: 4545 3810 408 171 0 3470 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 18180

[startup+12.702 s]
/proc/loadavg: 2.04 2.01 2.00 3/82 15112
/proc/meminfo: memFree=1017656/2055920 swapFree=4192812/4192956
[pid=15107] ppid=15105 vsize=31304 CPUtime=12.56
/proc/15107/stat : 15107 (pcs.big) R 15105 15107 14922 0 -1 4194304 7666 656 0 0 1253 3 0 0 25 0 1 0 59751620 32055296 7070 996147200 134512640 135215973 4294956304 18446744073709551615 134599868 0 0 4096 0 0 0 0 17 1 0 0
/proc/15107/statm: 7826 7070 408 171 0 6751 0
Current children cumulated CPU time (s) 12.56
Current children cumulated vsize (KiB) 31304

[startup+25.5013 s]
/proc/loadavg: 2.03 2.01 2.00 3/82 15112
/proc/meminfo: memFree=990264/2055920 swapFree=4192812/4192956
[pid=15107] ppid=15105 vsize=58468 CPUtime=25.24
/proc/15107/stat : 15107 (pcs.big) R 15105 15107 14922 0 -1 4194304 14657 656 0 0 2516 8 0 0 25 0 1 0 59751620 59871232 13771 996147200 134512640 135215973 4294956304 18446744073709551615 134600617 0 0 4096 0 0 0 0 17 1 0 0
/proc/15107/statm: 14617 13771 408 171 0 13542 0
Current children cumulated CPU time (s) 25.24
Current children cumulated vsize (KiB) 58468

[startup+51.1011 s]
/proc/loadavg: 2.02 2.01 2.00 3/82 15112
/proc/meminfo: memFree=941432/2055920 swapFree=4192812/4192956
[pid=15107] ppid=15105 vsize=108204 CPUtime=50.6
/proc/15107/stat : 15107 (pcs.big) R 15105 15107 14922 0 -1 4194304 27494 656 0 0 5045 15 0 0 25 0 1 0 59751620 110800896 26030 996147200 134512640 135215973 4294956304 18446744073709551615 134533042 0 0 4096 0 0 0 0 17 1 0 0
/proc/15107/statm: 27051 26030 408 171 0 25976 0
Current children cumulated CPU time (s) 50.6
Current children cumulated vsize (KiB) 108204

[startup+102.307 s]
/proc/loadavg: 2.01 2.00 2.00 3/82 15112
/proc/meminfo: memFree=840632/2055920 swapFree=4192812/4192956
[pid=15107] ppid=15105 vsize=209368 CPUtime=101.32
/proc/15107/stat : 15107 (pcs.big) R 15105 15107 14922 0 -1 4194304 53567 656 0 0 10103 29 0 0 25 0 1 0 59751620 214392832 50949 996147200 134512640 135215973 4294956304 18446744073709551615 134532667 0 0 4096 0 0 0 0 17 1 0 0
/proc/15107/statm: 52342 50949 408 171 0 51267 0
Current children cumulated CPU time (s) 101.32
Current children cumulated vsize (KiB) 209368

[startup+162.301 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 15112
/proc/meminfo: memFree=728824/2055920 swapFree=4192812/4192956
[pid=15107] ppid=15105 vsize=326672 CPUtime=160.75
/proc/15107/stat : 15107 (pcs.big) R 15105 15107 14922 0 -1 4194304 83754 656 0 0 16028 47 0 0 25 0 1 0 59751620 334512128 79087 996147200 134512640 135215973 4294956304 18446744073709551615 134583400 0 0 4096 0 0 0 0 17 1 0 0
/proc/15107/statm: 81668 79087 408 171 0 80593 0
Current children cumulated CPU time (s) 160.75
Current children cumulated vsize (KiB) 326672

[startup+222.302 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 15112
/proc/meminfo: memFree=616312/2055920 swapFree=4192812/4192956
[pid=15107] ppid=15105 vsize=435508 CPUtime=220.19
/proc/15107/stat : 15107 (pcs.big) R 15105 15107 14922 0 -1 4194304 111862 656 0 0 21957 62 0 0 25 0 1 0 59751620 445960192 106938 996147200 134512640 135215973 4294956304 18446744073709551615 134616525 0 0 4096 0 0 0 0 17 1 0 0
/proc/15107/statm: 108877 106938 408 171 0 107802 0
Current children cumulated CPU time (s) 220.19
Current children cumulated vsize (KiB) 435508

[startup+282.301 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 15114
/proc/meminfo: memFree=506872/2055920 swapFree=4192812/4192956
[pid=15107] ppid=15105 vsize=542232 CPUtime=279.63
/proc/15107/stat : 15107 (pcs.big) R 15105 15107 14922 0 -1 4194304 139413 656 0 0 27888 75 0 0 25 0 1 0 59751620 555245568 134489 996147200 134512640 135215973 4294956304 18446744073709551615 134532684 0 0 4096 0 0 0 0 17 1 0 0
/proc/15107/statm: 135558 134489 408 171 0 134483 0
Current children cumulated CPU time (s) 279.63
Current children cumulated vsize (KiB) 542232

[startup+342.302 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 15114
/proc/meminfo: memFree=397624/2055920 swapFree=4192812/4192956
[pid=15107] ppid=15105 vsize=663336 CPUtime=339.06
/proc/15107/stat : 15107 (pcs.big) R 15105 15107 14922 0 -1 4194304 170572 656 0 0 33814 92 0 0 25 0 1 0 59751620 679256064 161551 996147200 134512640 135215973 4294956304 18446744073709551615 134932991 0 0 4096 0 0 0 0 17 1 0 0
/proc/15107/statm: 165834 161551 408 171 0 164759 0
Current children cumulated CPU time (s) 339.06
Current children cumulated vsize (KiB) 663336

[startup+402.301 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 15114
/proc/meminfo: memFree=286456/2055920 swapFree=4192812/4192956
[pid=15107] ppid=15105 vsize=771976 CPUtime=398.49
/proc/15107/stat : 15107 (pcs.big) R 15105 15107 14922 0 -1 4194304 198612 656 0 0 39745 104 0 0 25 0 1 0 59751620 790503424 189591 996147200 134512640 135215973 4294956304 18446744073709551615 134599883 0 0 4096 0 0 0 0 17 1 0 0
/proc/15107/statm: 192994 189591 408 171 0 191919 0
Current children cumulated CPU time (s) 398.49
Current children cumulated vsize (KiB) 771976

[startup+462.302 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 15114
/proc/meminfo: memFree=166072/2055920 swapFree=4192812/4192956
[pid=15107] ppid=15105 vsize=889880 CPUtime=457.93
/proc/15107/stat : 15107 (pcs.big) R 15105 15107 14922 0 -1 4194304 228931 656 0 0 45674 119 0 0 25 0 1 0 59751620 911237120 219397 996147200 134512640 135215973 4294956304 18446744073709551615 134583630 0 0 4096 0 0 0 0 17 1 0 0
/proc/15107/statm: 222470 219397 408 171 0 221395 0
Current children cumulated CPU time (s) 457.93
Current children cumulated vsize (KiB) 889880



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+480.502 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 15114
/proc/meminfo: memFree=132344/2055920 swapFree=4192812/4192956
[pid=15107] ppid=15105 vsize=921776 CPUtime=475.96
/proc/15107/stat : 15107 (pcs.big) R 15105 15107 14922 0 -1 4194304 237164 656 0 0 47472 124 0 0 25 0 1 0 59751620 943898624 227630 996147200 134512640 135215973 4294956304 18446744073709551615 4158960188 0 0 4096 0 0 0 0 17 1 0 0
/proc/15107/statm: 230444 227630 408 171 0 229369 0
Current children cumulated CPU time (s) 475.96
Current children cumulated vsize (KiB) 921776

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

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

[startup+480.607 s]
/proc/loadavg: 2.00 2.00 2.00 3/83 15115
/proc/meminfo: memFree=777200/2055920 swapFree=4192812/4192956
[pid=15107] ppid=15105 vsize=0 CPUtime=476.06
/proc/15107/stat : 15107 (pcs.big) R 15105 15107 14922 0 -1 4195332 237164 656 0 0 47472 134 0 0 25 0 1 0 59751620 0 0 996147200 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/15107/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 476.06
Current children cumulated vsize (KiB) 0

Child ended because it received signal 15 (SIGTERM)
Real time (s): 480.654
CPU time (s): 476.123
CPU user time (s): 474.733
CPU system time (s): 1.38979
CPU usage (%): 99.0572
Max. virtual memory (cumulated for all children) (KiB): 921776

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 474.733
system time used= 1.38979
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 237820
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= 10400

runsolver used 0.635903 second user time and 1.56476 second system time

The end

Launcher Data 

Begin job on node47 at 2009-07-16 08:47:59
IDJOB=2086861
IDBENCH=58652
IDSOLVER=733
FILE ID=node47/2086861-1247726879
PBS_JOBID= 9521633
Free space on /tmp= 66384 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/langford4/normalized-langford-4-15.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2086861-1247726879/watcher-2086861-1247726879 -o /tmp/evaluation-result-2086861-1247726879/solver-2086861-1247726879 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 2037261913 HOME/instance-2086861-1247726879.xml

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

MD5SUM BENCH= 4d1aaa592db27ccaece4a9a11c6999b4
RANDOM SEED=2037261913

node47.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		: 3000.218
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		: 3000.218
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:       1043928 kB
Buffers:         90104 kB
Cached:         728208 kB
SwapCached:          0 kB
Active:         337216 kB
Inactive:       581448 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1043928 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            4140 kB
Writeback:           0 kB
Mapped:         120660 kB
Slab:            78416 kB
Committed_AS:   670996 kB
PageTables:       2096 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 node47 at 2009-07-16 08:56:02