Trace number 2086916

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) 429.852 439.244

General information on the benchmark

Namecsp/langford4/
normalized-langford-4-17.xml
MD5SUM3fe3aa089f1f308c838f4e4f77a704e4
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 benchmark651.328
Satisfiable
(Un)Satisfiability was proved
Number of variables68
Number of constraints2329
Maximum constraint arity2
Maximum domain size68
Number of constraints which are defined in extension0
Number of constraints which are defined in intension2329
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
0.18/0.21	c Seed is 1774966698
0.18/0.21	c Constructing HOME/instance-2086916-1247726963.xml 
0.18/0.21	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,V64,V65,V66,V67,V0)
0.18/0.21	c  with 2330 constraints
0.18/0.21	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-2086916-1247726963/watcher-2086916-1247726963 -o /tmp/evaluation-result-2086916-1247726963/solver-2086916-1247726963 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1774966698 HOME/instance-2086916-1247726963.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: 2.02 2.02 2.00 4/81 22664
/proc/meminfo: memFree=1718488/2055920 swapFree=4192812/4192956
[pid=22664] ppid=22662 vsize=18576 CPUtime=0
/proc/22664/stat : 22664 (runsolver) R 22662 22664 21679 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 59762969 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 217871609127 0 0 4096 24578 0 0 0 17 1 0 0
/proc/22664/statm: 4644 284 249 26 0 2626 0

[startup+0.106918 s]
/proc/loadavg: 2.02 2.02 2.00 4/81 22664
/proc/meminfo: memFree=1718488/2055920 swapFree=4192812/4192956
[pid=22664] ppid=22662 vsize=5080 CPUtime=0.08
/proc/22664/stat : 22664 (pcs.big) R 22662 22664 21679 0 -1 4194304 955 656 0 0 8 0 0 0 18 0 1 0 59762969 5201920 586 996147200 134512640 135215973 4294956304 18446744073709551615 135098163 0 0 4096 0 0 0 0 17 1 0 0
/proc/22664/statm: 1270 586 406 171 0 195 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5080

[startup+0.201925 s]
/proc/loadavg: 2.02 2.02 2.00 4/81 22664
/proc/meminfo: memFree=1718488/2055920 swapFree=4192812/4192956
[pid=22664] ppid=22662 vsize=5676 CPUtime=0.18
/proc/22664/stat : 22664 (pcs.big) R 22662 22664 21679 0 -1 4194304 1094 656 0 0 18 0 0 0 18 0 1 0 59762969 5812224 725 996147200 134512640 135215973 4294956304 18446744073709551615 134585880 0 0 4096 0 0 0 0 17 1 0 0
/proc/22664/statm: 1419 725 408 171 0 344 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 5676

[startup+0.301937 s]
/proc/loadavg: 2.02 2.02 2.00 4/81 22664
/proc/meminfo: memFree=1718488/2055920 swapFree=4192812/4192956
[pid=22664] ppid=22662 vsize=5804 CPUtime=0.28
/proc/22664/stat : 22664 (pcs.big) R 22662 22664 21679 0 -1 4194304 1126 656 0 0 28 0 0 0 19 0 1 0 59762969 5943296 757 996147200 134512640 135215973 4294956304 18446744073709551615 134977074 0 0 4096 0 0 0 0 17 1 0 0
/proc/22664/statm: 1451 757 408 171 0 376 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 5804

[startup+0.701983 s]
/proc/loadavg: 2.02 2.02 2.00 4/81 22664
/proc/meminfo: memFree=1718488/2055920 swapFree=4192812/4192956
[pid=22664] ppid=22662 vsize=6600 CPUtime=0.67
/proc/22664/stat : 22664 (pcs.big) R 22662 22664 21679 0 -1 4194304 1325 656 0 0 67 0 0 0 23 0 1 0 59762969 6758400 956 996147200 134512640 135215973 4294956304 18446744073709551615 134600073 0 0 4096 0 0 0 0 17 1 0 0
/proc/22664/statm: 1650 956 408 171 0 575 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 6600

[startup+1.50107 s]
/proc/loadavg: 2.02 2.02 2.00 3/82 22669
/proc/meminfo: memFree=1715344/2055920 swapFree=4192812/4192956
[pid=22664] ppid=22662 vsize=8556 CPUtime=1.43
/proc/22664/stat : 22664 (pcs.big) R 22662 22664 21679 0 -1 4194304 1808 656 0 0 143 0 0 0 25 0 1 0 59762969 8761344 1439 996147200 134512640 135215973 4294956304 18446744073709551615 134590403 0 0 4096 0 0 0 0 17 1 0 0
/proc/22664/statm: 2139 1439 408 171 0 1064 0
Current children cumulated CPU time (s) 1.43
Current children cumulated vsize (KiB) 8556

[startup+3.10226 s]
/proc/loadavg: 2.02 2.02 2.00 3/82 22669
/proc/meminfo: memFree=1712592/2055920 swapFree=4192812/4192956
[pid=22664] ppid=22662 vsize=11948 CPUtime=3
/proc/22664/stat : 22664 (pcs.big) R 22662 22664 21679 0 -1 4194304 2692 656 0 0 299 1 0 0 25 0 1 0 59762969 12234752 2290 996147200 134512640 135215973 4294956304 18446744073709551615 134585720 0 0 4096 0 0 0 0 17 1 0 0
/proc/22664/statm: 2987 2290 408 171 0 1912 0
Current children cumulated CPU time (s) 3
Current children cumulated vsize (KiB) 11948

[startup+6.30163 s]
/proc/loadavg: 2.02 2.02 2.00 3/82 22669
/proc/meminfo: memFree=1705296/2055920 swapFree=4192812/4192956
[pid=22664] ppid=22662 vsize=18828 CPUtime=6.16
/proc/22664/stat : 22664 (pcs.big) R 22662 22664 21679 0 -1 4194304 4440 656 0 0 614 2 0 0 25 0 1 0 59762969 19279872 3973 996147200 134512640 135215973 4294956304 18446744073709551615 4158960004 0 0 4096 0 0 0 0 17 1 0 0
/proc/22664/statm: 4707 3973 408 171 0 3632 0
Current children cumulated CPU time (s) 6.16
Current children cumulated vsize (KiB) 18828

[startup+12.7014 s]
/proc/loadavg: 2.02 2.02 2.00 3/82 22669
/proc/meminfo: memFree=1691984/2055920 swapFree=4192812/4192956
[pid=22664] ppid=22662 vsize=32308 CPUtime=12.5
/proc/22664/stat : 22664 (pcs.big) R 22662 22664 21679 0 -1 4194304 7902 656 0 0 1246 4 0 0 25 0 1 0 59762969 33083392 7273 996147200 134512640 135215973 4294956304 18446744073709551615 134599879 0 0 4096 0 0 0 0 17 1 0 0
/proc/22664/statm: 8077 7273 408 171 0 7002 0
Current children cumulated CPU time (s) 12.5
Current children cumulated vsize (KiB) 32308

[startup+25.5018 s]
/proc/loadavg: 2.01 2.02 2.00 3/82 22669
/proc/meminfo: memFree=1662416/2055920 swapFree=4192812/4192956
[pid=22664] ppid=22662 vsize=61244 CPUtime=25.18
/proc/22664/stat : 22664 (pcs.big) R 22662 22664 21679 0 -1 4194304 15353 656 0 0 2510 8 0 0 25 0 1 0 59762969 62713856 14467 996147200 134512640 135215973 4294956304 18446744073709551615 4158960896 0 0 4096 0 0 0 0 17 1 0 0
/proc/22664/statm: 15311 14467 408 171 0 14236 0
Current children cumulated CPU time (s) 25.18
Current children cumulated vsize (KiB) 61244

[startup+51.1018 s]
/proc/loadavg: 2.01 2.01 2.00 3/82 22669
/proc/meminfo: memFree=1610832/2055920 swapFree=4192812/4192956
[pid=22664] ppid=22662 vsize=114268 CPUtime=50.52
/proc/22664/stat : 22664 (pcs.big) R 22662 22664 21679 0 -1 4194304 28960 656 0 0 5037 15 0 0 25 0 1 0 59762969 117010432 27496 996147200 134512640 135215973 4294956304 18446744073709551615 134649114 0 0 4096 0 0 0 0 17 1 0 0
/proc/22664/statm: 28567 27496 408 171 0 27492 0
Current children cumulated CPU time (s) 50.52
Current children cumulated vsize (KiB) 114268

[startup+102.302 s]
/proc/loadavg: 2.00 2.01 2.00 3/82 22669
/proc/meminfo: memFree=1505808/2055920 swapFree=4192812/4192956
[pid=22664] ppid=22662 vsize=219276 CPUtime=101.22
/proc/22664/stat : 22664 (pcs.big) R 22662 22664 21679 0 -1 4194304 55917 656 0 0 10091 31 0 0 25 0 1 0 59762969 224538624 53428 996147200 134512640 135215973 4294956304 18446744073709551615 134532677 0 0 4096 0 0 0 0 17 1 0 0
/proc/22664/statm: 54819 53428 408 171 0 53744 0
Current children cumulated CPU time (s) 101.22
Current children cumulated vsize (KiB) 219276

[startup+162.302 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 22671
/proc/meminfo: memFree=1381712/2055920 swapFree=4192812/4192956
[pid=22664] ppid=22662 vsize=349848 CPUtime=160.63
/proc/22664/stat : 22664 (pcs.big) R 22662 22664 21679 0 -1 4194304 89337 656 0 0 16013 50 0 0 25 0 1 0 59762969 358244352 84670 996147200 134512640 135215973 4294956304 18446744073709551615 13025121 0 0 4096 0 0 0 0 17 1 0 0
/proc/22664/statm: 87462 84670 408 171 0 86387 0
Current children cumulated CPU time (s) 160.63
Current children cumulated vsize (KiB) 349848

[startup+222.306 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 22671
/proc/meminfo: memFree=1259984/2055920 swapFree=4192812/4192956
[pid=22664] ppid=22662 vsize=467000 CPUtime=220.05
/proc/22664/stat : 22664 (pcs.big) R 22662 22664 21679 0 -1 4194304 119458 656 0 0 21938 67 0 0 25 0 1 0 59762969 478208000 114791 996147200 134512640 135215973 4294956304 18446744073709551615 134640986 0 0 4096 0 0 0 0 17 1 0 0
/proc/22664/statm: 116750 114791 408 171 0 115675 0
Current children cumulated CPU time (s) 220.05
Current children cumulated vsize (KiB) 467000

[startup+282.301 s]
/proc/loadavg: 2.25 2.06 2.02 3/82 22747
/proc/meminfo: memFree=984848/2055920 swapFree=4192812/4192956
[pid=22664] ppid=22662 vsize=575468 CPUtime=272.99
/proc/22664/stat : 22664 (pcs.big) R 22662 22664 21679 0 -1 4194304 147329 656 0 0 27208 91 0 0 25 0 1 0 59762969 589279232 142405 996147200 134512640 135215973 4294956304 18446744073709551615 4158960272 0 0 4096 0 0 0 0 17 0 0 0
/proc/22664/statm: 143867 142405 408 171 0 142792 0
Current children cumulated CPU time (s) 272.99
Current children cumulated vsize (KiB) 575468

[startup+342.301 s]
/proc/loadavg: 2.09 2.05 2.01 3/82 22747
/proc/meminfo: memFree=853968/2055920 swapFree=4192812/4192956
[pid=22664] ppid=22662 vsize=717772 CPUtime=332.94
/proc/22664/stat : 22664 (pcs.big) R 22662 22664 21679 0 -1 4194304 183805 656 0 0 33185 109 0 0 25 0 1 0 59762969 734998528 174784 996147200 134512640 135215973 4294956304 18446744073709551615 134603545 0 0 4096 0 0 0 0 17 0 0 0
/proc/22664/statm: 179443 174784 408 171 0 178368 0
Current children cumulated CPU time (s) 332.94
Current children cumulated vsize (KiB) 717772

[startup+402.301 s]
/proc/loadavg: 2.03 2.04 2.01 3/82 22747
/proc/meminfo: memFree=727376/2055920 swapFree=4192812/4192956
[pid=22664] ppid=22662 vsize=841608 CPUtime=392.91
/proc/22664/stat : 22664 (pcs.big) R 22662 22664 21679 0 -1 4194304 215684 656 0 0 39168 123 0 0 25 0 1 0 59762969 861806592 206663 996147200 134512640 135215973 4294956304 18446744073709551615 134583634 0 0 4096 0 0 0 0 17 0 0 0
/proc/22664/statm: 210402 206663 408 171 0 209327 0
Current children cumulated CPU time (s) 392.91
Current children cumulated vsize (KiB) 841608



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+439.102 s]
/proc/loadavg: 2.02 2.03 2.00 3/82 22747
/proc/meminfo: memFree=643472/2055920 swapFree=4192812/4192956
[pid=22664] ppid=22662 vsize=921684 CPUtime=429.7
/proc/22664/stat : 22664 (pcs.big) R 22662 22664 21679 0 -1 4194304 236220 656 0 0 42837 133 0 0 25 0 1 0 59762969 943804416 227199 996147200 134512640 135215973 4294956304 18446744073709551615 134598054 0 0 4096 0 0 0 0 17 0 0 0
/proc/22664/statm: 230421 227199 408 171 0 229346 0
Current children cumulated CPU time (s) 429.7
Current children cumulated vsize (KiB) 921684

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

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

[startup+439.207 s]
/proc/loadavg: 2.02 2.03 2.00 3/82 22747
/proc/meminfo: memFree=643472/2055920 swapFree=4192812/4192956
[pid=22664] ppid=22662 vsize=0 CPUtime=429.8
/proc/22664/stat : 22664 (pcs.big) R 22662 22664 21679 0 -1 4195332 236220 656 0 0 42837 143 0 0 25 0 1 0 59762969 0 0 996147200 0 0 0 0 0 0 0 4096 0 0 0 0 17 0 0 0
/proc/22664/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 429.8
Current children cumulated vsize (KiB) 0

Child ended because it received signal 15 (SIGTERM)
Real time (s): 439.244
CPU time (s): 429.852
CPU user time (s): 428.375
CPU system time (s): 1.47678
CPU usage (%): 97.8616
Max. virtual memory (cumulated for all children) (KiB): 921684

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 428.375
system time used= 1.47677
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 236876
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= 11058

runsolver used 0.798878 second user time and 1.9617 second system time

The end

Launcher Data 

Begin job on node28 at 2009-07-16 08:49:23
IDJOB=2086916
IDBENCH=58659
IDSOLVER=733
FILE ID=node28/2086916-1247726963
PBS_JOBID= 9521522
Free space on /tmp= 66008 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/langford4/normalized-langford-4-17.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2086916-1247726963/watcher-2086916-1247726963 -o /tmp/evaluation-result-2086916-1247726963/solver-2086916-1247726963 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1774966698 HOME/instance-2086916-1247726963.xml

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

MD5SUM BENCH= 3fe3aa089f1f308c838f4e4f77a704e4
RANDOM SEED=1774966698

node28.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		: 3000.230
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		: 3000.230
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:       1718968 kB
Buffers:         52388 kB
Cached:         167456 kB
SwapCached:          0 kB
Active:         131608 kB
Inactive:       141876 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1718968 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2004 kB
Writeback:           0 kB
Mapped:          74024 kB
Slab:            48320 kB
Committed_AS:   638220 kB
PageTables:       1964 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= 65980 MiB
End job on node28 at 2009-07-16 08:56:45