Trace number 2082329

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) 434.355 436.449

General information on the benchmark

Namecsp/langford2/
normalized-langford-2-14.xml
MD5SUM05b79466c1ca90e99abd9087a68fd106
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 variables28
Number of constraints392
Maximum constraint arity2
Maximum domain size28
Number of constraints which are defined in extension0
Number of constraints which are defined in intension392
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c has operations which may create big domains
0.00/0.01	c big-domain mode
0.17/0.23	c Seed is 728315620
0.17/0.23	c Constructing HOME/instance-2082329-1247720897.xml 
0.17/0.23	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,V0)
0.17/0.23	c  with 393 constraints
0.17/0.23	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-2082329-1247720897/watcher-2082329-1247720897 -o /tmp/evaluation-result-2082329-1247720897/solver-2082329-1247720897 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 728315620 HOME/instance-2082329-1247720897.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: 1.92 1.98 1.99 4/81 12802
/proc/meminfo: memFree=1387720/2055920 swapFree=4192812/4192956
[pid=12802] ppid=12800 vsize=18576 CPUtime=0
/proc/12802/stat : 12802 (runsolver) R 12800 12802 11245 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 59153740 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 272836914471 0 0 4096 24578 0 0 0 17 1 0 0
/proc/12802/statm: 4644 284 249 26 0 2626 0

[startup+0.056693 s]
/proc/loadavg: 1.92 1.98 1.99 4/81 12802
/proc/meminfo: memFree=1387720/2055920 swapFree=4192812/4192956
[pid=12802] ppid=12800 vsize=4620 CPUtime=0.03
/proc/12802/stat : 12802 (pcs.big) R 12800 12802 11245 0 -1 4194304 884 826 0 0 3 0 0 0 18 0 1 0 59153740 4730880 493 996147200 134512640 135215973 4294956304 18446744073709551615 12654203 0 0 4096 0 0 0 0 17 1 0 0
/proc/12802/statm: 1155 493 408 171 0 80 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 4620

[startup+0.101693 s]
/proc/loadavg: 1.92 1.98 1.99 4/81 12802
/proc/meminfo: memFree=1387720/2055920 swapFree=4192812/4192956
[pid=12802] ppid=12800 vsize=4752 CPUtime=0.07
/proc/12802/stat : 12802 (pcs.big) R 12800 12802 11245 0 -1 4194304 906 826 0 0 7 0 0 0 18 0 1 0 59153740 4866048 515 996147200 134512640 135215973 4294956304 18446744073709551615 4158960153 0 0 4096 0 0 0 0 17 1 0 0
/proc/12802/statm: 1188 515 408 171 0 113 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 4752

[startup+0.301706 s]
/proc/loadavg: 1.92 1.98 1.99 4/81 12802
/proc/meminfo: memFree=1387720/2055920 swapFree=4192812/4192956
[pid=12802] ppid=12800 vsize=5136 CPUtime=0.27
/proc/12802/stat : 12802 (pcs.big) R 12800 12802 11245 0 -1 4194304 1013 826 0 0 27 0 0 0 19 0 1 0 59153740 5259264 622 996147200 134512640 135215973 4294956304 18446744073709551615 134599858 0 0 4096 0 0 0 0 17 1 0 0
/proc/12802/statm: 1284 622 408 171 0 209 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 5136

[startup+0.701733 s]
/proc/loadavg: 1.92 1.98 1.99 4/81 12802
/proc/meminfo: memFree=1387720/2055920 swapFree=4192812/4192956
[pid=12802] ppid=12800 vsize=6040 CPUtime=0.67
/proc/12802/stat : 12802 (pcs.big) R 12800 12802 11245 0 -1 4194304 1234 826 0 0 67 0 0 0 23 0 1 0 59153740 6184960 843 996147200 134512640 135215973 4294956304 18446744073709551615 4158961134 0 0 4096 0 0 0 0 17 1 0 0
/proc/12802/statm: 1510 843 408 171 0 435 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 6040

[startup+1.50178 s]
/proc/loadavg: 1.92 1.98 1.99 3/82 12808
/proc/meminfo: memFree=1385280/2055920 swapFree=4192812/4192956
[pid=12802] ppid=12800 vsize=7900 CPUtime=1.47
/proc/12802/stat : 12802 (pcs.big) R 12800 12802 11245 0 -1 4194304 1709 826 0 0 146 1 0 0 25 0 1 0 59153740 8089600 1285 996147200 134512640 135215973 4294956304 18446744073709551615 12654203 0 0 4096 0 0 0 0 17 1 0 0
/proc/12802/statm: 1975 1285 408 171 0 900 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 7900

[startup+3.10189 s]
/proc/loadavg: 1.92 1.98 1.99 3/82 12808
/proc/meminfo: memFree=1382720/2055920 swapFree=4192812/4192956
[pid=12802] ppid=12800 vsize=11644 CPUtime=3.06
/proc/12802/stat : 12802 (pcs.big) R 12800 12802 11245 0 -1 4194304 2679 826 0 0 305 1 0 0 25 0 1 0 59153740 11923456 2190 996147200 134512640 135215973 4294956304 18446744073709551615 4158960138 0 0 4096 0 0 0 0 17 1 0 0
/proc/12802/statm: 2911 2190 408 171 0 1836 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 11644

[startup+6.30111 s]
/proc/loadavg: 1.93 1.98 1.99 3/82 12808
/proc/meminfo: memFree=1375296/2055920 swapFree=4192812/4192956
[pid=12802] ppid=12800 vsize=19052 CPUtime=6.25
/proc/12802/stat : 12802 (pcs.big) R 12800 12802 11245 0 -1 4194304 4631 826 0 0 622 3 0 0 25 0 1 0 59153740 19509248 3980 996147200 134512640 135215973 4294956304 18446744073709551615 12654203 0 0 4096 0 0 0 0 17 1 0 0
/proc/12802/statm: 4763 3980 408 171 0 3688 0
Current children cumulated CPU time (s) 6.25
Current children cumulated vsize (KiB) 19052

[startup+12.7015 s]
/proc/loadavg: 1.93 1.98 1.99 3/82 12808
/proc/meminfo: memFree=1360832/2055920 swapFree=4192812/4192956
[pid=12802] ppid=12800 vsize=33296 CPUtime=12.61
/proc/12802/stat : 12802 (pcs.big) R 12800 12802 11245 0 -1 4194304 8397 826 0 0 1256 5 0 0 25 0 1 0 59153740 34095104 7424 996147200 134512640 135215973 4294956304 18446744073709551615 134588522 0 0 4096 0 0 0 0 17 1 0 0
/proc/12802/statm: 8324 7424 408 171 0 7249 0
Current children cumulated CPU time (s) 12.61
Current children cumulated vsize (KiB) 33296

[startup+25.5024 s]
/proc/loadavg: 1.95 1.98 1.99 3/82 12808
/proc/meminfo: memFree=1332096/2055920 swapFree=4192812/4192956
[pid=12802] ppid=12800 vsize=62236 CPUtime=25.36
/proc/12802/stat : 12802 (pcs.big) R 12800 12802 11245 0 -1 4194304 16006 826 0 0 2526 10 0 0 25 0 1 0 59153740 63729664 14391 996147200 134512640 135215973 4294956304 18446744073709551615 134600737 0 0 4096 0 0 0 0 17 1 0 0
/proc/12802/statm: 15559 14391 408 171 0 14484 0
Current children cumulated CPU time (s) 25.36
Current children cumulated vsize (KiB) 62236

[startup+51.1021 s]
/proc/loadavg: 1.96 1.98 1.99 3/82 12808
/proc/meminfo: memFree=1279744/2055920 swapFree=4192812/4192956
[pid=12802] ppid=12800 vsize=117104 CPUtime=50.84
/proc/12802/stat : 12802 (pcs.big) R 12800 12802 11245 0 -1 4194304 30530 826 0 0 5065 19 0 0 25 0 1 0 59153740 119914496 27633 996147200 134512640 135215973 4294956304 18446744073709551615 12654203 0 0 4096 0 0 0 0 17 1 0 0
/proc/12802/statm: 29276 27633 408 171 0 28201 0
Current children cumulated CPU time (s) 50.84
Current children cumulated vsize (KiB) 117104

[startup+102.307 s]
/proc/loadavg: 1.98 1.98 1.99 3/82 12808
/proc/meminfo: memFree=1169856/2055920 swapFree=4192812/4192956
[pid=12802] ppid=12800 vsize=230200 CPUtime=101.79
/proc/12802/stat : 12802 (pcs.big) R 12800 12802 11245 0 -1 4194304 60252 826 0 0 10143 36 0 0 25 0 1 0 59153740 235724800 54793 996147200 134512640 135215973 4294956304 18446744073709551615 12660355 0 0 4096 0 0 0 0 17 1 0 0
/proc/12802/statm: 57550 54793 408 171 0 56475 0
Current children cumulated CPU time (s) 101.79
Current children cumulated vsize (KiB) 230200

[startup+162.303 s]
/proc/loadavg: 1.99 1.98 1.99 3/82 12808
/proc/meminfo: memFree=1045760/2055920 swapFree=4192812/4192956
[pid=12802] ppid=12800 vsize=352192 CPUtime=161.5
/proc/12802/stat : 12802 (pcs.big) R 12800 12802 11245 0 -1 4194304 92510 826 0 0 16093 57 0 0 25 0 1 0 59153740 360644608 86026 996147200 134512640 135215973 4294956304 18446744073709551615 134908237 0 0 4096 0 0 0 0 17 1 0 0
/proc/12802/statm: 88048 86026 408 171 0 86973 0
Current children cumulated CPU time (s) 161.5
Current children cumulated vsize (KiB) 352192

[startup+222.303 s]
/proc/loadavg: 1.99 1.98 1.99 3/82 12808
/proc/meminfo: memFree=931200/2055920 swapFree=4192812/4192956
[pid=12802] ppid=12800 vsize=474916 CPUtime=221.22
/proc/12802/stat : 12802 (pcs.big) R 12800 12802 11245 0 -1 4194304 124953 826 0 0 22047 75 0 0 25 0 1 0 59153740 486313984 114372 996147200 134512640 135215973 4294956304 18446744073709551615 12654203 0 0 4096 0 0 0 0 17 1 0 0
/proc/12802/statm: 118729 114372 408 171 0 117654 0
Current children cumulated CPU time (s) 221.22
Current children cumulated vsize (KiB) 474916

[startup+282.302 s]
/proc/loadavg: 2.04 2.00 2.00 3/82 12808
/proc/meminfo: memFree=815552/2055920 swapFree=4192812/4192956
[pid=12802] ppid=12800 vsize=584392 CPUtime=280.93
/proc/12802/stat : 12802 (pcs.big) R 12800 12802 11245 0 -1 4194304 154091 826 0 0 28003 90 0 0 25 0 1 0 59153740 598417408 143510 996147200 134512640 135215973 4294956304 18446744073709551615 134599883 0 0 4096 0 0 0 0 17 1 0 0
/proc/12802/statm: 146098 143510 408 171 0 145023 0
Current children cumulated CPU time (s) 280.93
Current children cumulated vsize (KiB) 584392

[startup+342.302 s]
/proc/loadavg: 2.18 2.04 2.01 3/82 12808
/proc/meminfo: memFree=685824/2055920 swapFree=4192812/4192956
[pid=12802] ppid=12800 vsize=714280 CPUtime=340.64
/proc/12802/stat : 12802 (pcs.big) R 12800 12802 11245 0 -1 4194304 188276 826 0 0 33958 106 0 0 25 0 1 0 59153740 731422720 175646 996147200 134512640 135215973 4294956304 18446744073709551615 134902596 0 0 4096 0 0 0 0 17 1 0 0
/proc/12802/statm: 178570 175646 408 171 0 177495 0
Current children cumulated CPU time (s) 340.64
Current children cumulated vsize (KiB) 714280

[startup+402.302 s]
/proc/loadavg: 2.17 2.06 2.02 3/82 12808
/proc/meminfo: memFree=568896/2055920 swapFree=4192812/4192956
[pid=12802] ppid=12800 vsize=858120 CPUtime=400.35
/proc/12802/stat : 12802 (pcs.big) R 12800 12802 11245 0 -1 4194304 225902 826 0 0 39908 127 0 0 25 0 1 0 59153740 878714880 205079 996147200 134512640 135215973 4294956304 18446744073709551615 134609929 0 0 4096 0 0 0 0 17 1 0 0
/proc/12802/statm: 214530 205079 408 171 0 213455 0
Current children cumulated CPU time (s) 400.35
Current children cumulated vsize (KiB) 858120



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+436.303 s]
/proc/loadavg: 2.37 2.12 2.04 3/82 12808
/proc/meminfo: memFree=499584/2055920 swapFree=4192812/4192956
[pid=12802] ppid=12800 vsize=921820 CPUtime=434.2
/proc/12802/stat : 12802 (pcs.big) R 12800 12802 11245 0 -1 4194304 242745 826 0 0 43281 139 0 0 25 0 1 0 59153740 943943680 221922 996147200 134512640 135215973 4294956304 18446744073709551615 12654203 0 0 4096 0 0 0 0 17 1 0 0
/proc/12802/statm: 230455 221922 408 171 0 229380 0
Current children cumulated CPU time (s) 434.2
Current children cumulated vsize (KiB) 921820

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

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

[startup+436.407 s]
/proc/loadavg: 2.37 2.12 2.04 3/82 12808
/proc/meminfo: memFree=499584/2055920 swapFree=4192812/4192956
[pid=12802] ppid=12800 vsize=0 CPUtime=434.3
/proc/12802/stat : 12802 (pcs.big) R 12800 12802 11245 0 -1 4195332 242745 826 0 0 43281 149 0 0 25 0 1 0 59153740 0 0 996147200 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/12802/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 434.3
Current children cumulated vsize (KiB) 0

Child ended because it received signal 15 (SIGTERM)
Real time (s): 436.449
CPU time (s): 434.355
CPU user time (s): 432.812
CPU system time (s): 1.54277
CPU usage (%): 99.5201
Max. virtual memory (cumulated for all children) (KiB): 921820

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 432.812
system time used= 1.54276
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 243571
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= 22
involuntary context switches= 13270

runsolver used 0.529919 second user time and 1.07084 second system time

The end

Launcher Data 

Begin job on node39 at 2009-07-16 07:08:17
IDJOB=2082329
IDBENCH=57572
IDSOLVER=733
FILE ID=node39/2082329-1247720897
PBS_JOBID= 9521404
Free space on /tmp= 66360 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/langford2/normalized-langford-2-14.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2082329-1247720897/watcher-2082329-1247720897 -o /tmp/evaluation-result-2082329-1247720897/solver-2082329-1247720897 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 728315620 HOME/instance-2082329-1247720897.xml

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

MD5SUM BENCH= 05b79466c1ca90e99abd9087a68fd106
RANDOM SEED=728315620

node39.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		: 3000.236
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		: 3000.236
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:       1388200 kB
Buffers:         86748 kB
Cached:         418288 kB
SwapCached:          0 kB
Active:         264888 kB
Inactive:       318432 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1388200 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1760 kB
Writeback:           0 kB
Mapped:          98740 kB
Slab:            69432 kB
Committed_AS:   660580 kB
PageTables:       1960 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= 66360 MiB
End job on node39 at 2009-07-16 07:15:35