Trace number 2058778

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 0.3.2UNSAT 132.843 134.115

DiagnosticValue
ASSIGNMENTS23154

General information on the benchmark

Namecsp/langford/
normalized-slangford-3-11-ext.xml
MD5SUM540723c3977a7f4946311e21f518088e
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark2.09568
Satisfiable
(Un)Satisfiability was proved
Number of variables33
Number of constraints572
Maximum constraint arity2
Maximum domain size33
Number of constraints which are defined in extension572
Number of constraints which are defined in intension0
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
0.17/0.23	c Seed is 984598156
0.17/0.23	c Constructing HOME/instance-2058778-1247694320.xml  with 18128 constraints
0.17/0.23	c Solving 23154 backtracks 16 restarts
132.72/134.10	s UNSATISFIABLE
132.72/134.10	d ASSIGNMENTS 23154

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2058778-1247694320/watcher-2058778-1247694320 -o /tmp/evaluation-result-2058778-1247694320/solver-2058778-1247694320 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 984598156 HOME/instance-2058778-1247694320.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: 1.62 0.56 0.20 4/72 11902
/proc/meminfo: memFree=1470648/2055920 swapFree=4192812/4192956
[pid=11902] ppid=11900 vsize=18576 CPUtime=0
/proc/11902/stat : 11902 (runsolver) R 11900 11902 11425 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 56492351 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 224627584295 0 0 4096 24578 0 0 0 17 1 0 0
/proc/11902/statm: 4644 284 249 26 0 2626 0

[startup+0.0159679 s]
/proc/loadavg: 1.62 0.56 0.20 4/72 11902
/proc/meminfo: memFree=1470648/2055920 swapFree=4192812/4192956
[pid=11902] ppid=11900 vsize=796 CPUtime=0
/proc/11902/stat : 11902 (pcs.big) R 11900 11902 11425 0 -1 4194304 378 656 0 0 0 0 0 0 23 0 1 0 56492351 815104 26 996147200 134512640 135215973 4294956304 18446744073709551615 3810084 0 0 4096 0 0 0 0 17 1 0 0
/proc/11902/statm: 199 26 20 171 0 3 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 796

[startup+0.101984 s]
/proc/loadavg: 1.62 0.56 0.20 4/72 11902
/proc/meminfo: memFree=1470648/2055920 swapFree=4192812/4192956
[pid=11902] ppid=11900 vsize=10468 CPUtime=0.07
/proc/11902/stat : 11902 (pcs.big) R 11900 11902 11425 0 -1 4194304 2399 656 0 0 7 0 0 0 18 0 1 0 56492351 10719232 1803 996147200 134512640 135215973 4294956304 18446744073709551615 4158960484 0 0 4096 0 0 0 0 17 1 0 0
/proc/11902/statm: 2617 1803 400 171 0 1542 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 10468

[startup+0.302012 s]
/proc/loadavg: 1.62 0.56 0.20 4/72 11902
/proc/meminfo: memFree=1470648/2055920 swapFree=4192812/4192956
[pid=11902] ppid=11900 vsize=10748 CPUtime=0.27
/proc/11902/stat : 11902 (pcs.big) R 11900 11902 11425 0 -1 4194304 2481 656 0 0 27 0 0 0 19 0 1 0 56492351 11005952 1885 996147200 134512640 135215973 4294956304 18446744073709551615 135018627 0 0 4096 0 0 0 0 17 1 0 0
/proc/11902/statm: 2687 1885 402 171 0 1612 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 10748

[startup+0.701067 s]
/proc/loadavg: 1.62 0.56 0.20 4/72 11902
/proc/meminfo: memFree=1470648/2055920 swapFree=4192812/4192956
[pid=11902] ppid=11900 vsize=10880 CPUtime=0.68
/proc/11902/stat : 11902 (pcs.big) R 11900 11902 11425 0 -1 4194304 2515 656 0 0 67 1 0 0 23 0 1 0 56492351 11141120 1919 996147200 134512640 135215973 4294956304 18446744073709551615 4158960128 0 0 4096 0 0 0 0 17 1 0 0
/proc/11902/statm: 2720 1919 402 171 0 1645 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 10880

[startup+1.50118 s]
/proc/loadavg: 1.65 0.59 0.21 3/73 11907
/proc/meminfo: memFree=1464104/2055920 swapFree=4192812/4192956
[pid=11902] ppid=11900 vsize=11292 CPUtime=1.47
/proc/11902/stat : 11902 (pcs.big) R 11900 11902 11425 0 -1 4194304 2609 656 0 0 146 1 0 0 25 0 1 0 56492351 11563008 2013 996147200 134512640 135215973 4294956304 18446744073709551615 134583434 0 0 4096 0 0 0 0 17 1 0 0
/proc/11902/statm: 2823 2013 402 171 0 1748 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 11292

[startup+3.10141 s]
/proc/loadavg: 1.65 0.59 0.21 3/73 11907
/proc/meminfo: memFree=1460712/2055920 swapFree=4192812/4192956
[pid=11902] ppid=11900 vsize=12084 CPUtime=3.05
/proc/11902/stat : 11902 (pcs.big) R 11900 11902 11425 0 -1 4194304 2816 656 0 0 304 1 0 0 25 0 1 0 56492351 12374016 2220 996147200 134512640 135215973 4294956304 18446744073709551615 134599879 0 0 4096 0 0 0 0 17 1 0 0
/proc/11902/statm: 3021 2220 402 171 0 1946 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 12084

[startup+6.30286 s]
/proc/loadavg: 1.68 0.61 0.22 3/73 11907
/proc/meminfo: memFree=1458920/2055920 swapFree=4192812/4192956
[pid=11902] ppid=11900 vsize=13524 CPUtime=6.22
/proc/11902/stat : 11902 (pcs.big) R 11900 11902 11425 0 -1 4194304 3220 656 0 0 621 1 0 0 25 0 1 0 56492351 13848576 2591 996147200 134512640 135215973 4294956304 18446744073709551615 4158960014 0 0 4096 0 0 0 0 17 1 0 0
/proc/11902/statm: 3381 2591 402 171 0 2306 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 13524

[startup+12.7018 s]
/proc/loadavg: 1.70 0.63 0.23 3/73 11907
/proc/meminfo: memFree=1455664/2055920 swapFree=4192812/4192956
[pid=11902] ppid=11900 vsize=16288 CPUtime=12.55
/proc/11902/stat : 11902 (pcs.big) R 11900 11902 11425 0 -1 4194304 3975 656 0 0 1254 1 0 0 25 0 1 0 56492351 16678912 3281 996147200 134512640 135215973 4294956304 18446744073709551615 134600171 0 0 4096 0 0 0 0 17 1 0 0
/proc/11902/statm: 4072 3281 402 171 0 2997 0
Current children cumulated CPU time (s) 12.55
Current children cumulated vsize (KiB) 16288

[startup+25.5016 s]
/proc/loadavg: 1.75 0.68 0.25 3/73 11907
/proc/meminfo: memFree=1449456/2055920 swapFree=4192812/4192956
[pid=11902] ppid=11900 vsize=21812 CPUtime=25.24
/proc/11902/stat : 11902 (pcs.big) R 11900 11902 11425 0 -1 4194304 5461 656 0 0 2521 3 0 0 25 0 1 0 56492351 22335488 4638 996147200 134512640 135215973 4294956304 18446744073709551615 134590993 0 0 4096 0 0 0 0 17 1 0 0
/proc/11902/statm: 5453 4638 402 171 0 4378 0
Current children cumulated CPU time (s) 25.24
Current children cumulated vsize (KiB) 21812

[startup+51.1012 s]
/proc/loadavg: 1.85 0.80 0.30 3/73 11907
/proc/meminfo: memFree=1437616/2055920 swapFree=4192812/4192956
[pid=11902] ppid=11900 vsize=31260 CPUtime=50.59
/proc/11902/stat : 11902 (pcs.big) R 11900 11902 11425 0 -1 4194304 8048 656 0 0 5054 5 0 0 25 0 1 0 56492351 32010240 6968 996147200 134512640 135215973 4294956304 18446744073709551615 4158960012 0 0 4096 0 0 0 0 17 1 0 0
/proc/11902/statm: 7815 6968 402 171 0 6740 0
Current children cumulated CPU time (s) 50.59
Current children cumulated vsize (KiB) 31260

[startup+102.306 s]
/proc/loadavg: 1.93 0.99 0.39 3/73 11907
/proc/meminfo: memFree=1416048/2055920 swapFree=4192812/4192956
[pid=11902] ppid=11900 vsize=48976 CPUtime=101.32
/proc/11902/stat : 11902 (pcs.big) R 11900 11902 11425 0 -1 4194304 12828 656 0 0 10123 9 0 0 25 0 1 0 56492351 50151424 10945 996147200 134512640 135215973 4294956304 18446744073709551615 134609802 0 0 4096 0 0 0 0 17 1 0 0
/proc/11902/statm: 12244 10945 402 171 0 11169 0
Current children cumulated CPU time (s) 101.32
Current children cumulated vsize (KiB) 48976

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

[startup+115.101 s]
/proc/loadavg: 1.94 1.02 0.40 3/73 11907
/proc/meminfo: memFree=1411632/2055920 swapFree=4192812/4192956
[pid=11902] ppid=11900 vsize=52136 CPUtime=113.99
/proc/11902/stat : 11902 (pcs.big) R 11900 11902 11425 0 -1 4194304 13680 656 0 0 11390 9 0 0 25 0 1 0 56492351 53387264 11797 996147200 134512640 135215973 4294956304 18446744073709551615 134533037 0 0 4096 0 0 0 0 17 1 0 0
/proc/11902/statm: 13034 11797 402 171 0 11959 0
Current children cumulated CPU time (s) 113.99
Current children cumulated vsize (KiB) 52136

[startup+127.901 s]
/proc/loadavg: 1.95 1.07 0.43 3/73 11907
/proc/meminfo: memFree=1407088/2055920 swapFree=4192812/4192956
[pid=11902] ppid=11900 vsize=55040 CPUtime=126.67
/proc/11902/stat : 11902 (pcs.big) R 11900 11902 11425 0 -1 4194304 14491 656 0 0 12657 10 0 0 25 0 1 0 56492351 56360960 12608 996147200 134512640 135215973 4294956304 18446744073709551615 4158960146 0 0 4096 0 0 0 0 17 1 0 0
/proc/11902/statm: 13760 12608 402 171 0 12685 0
Current children cumulated CPU time (s) 126.67
Current children cumulated vsize (KiB) 55040

[startup+131.102 s]
/proc/loadavg: 1.96 1.08 0.44 3/73 11907
/proc/meminfo: memFree=1406000/2055920 swapFree=4192812/4192956
[pid=11902] ppid=11900 vsize=55700 CPUtime=129.84
/proc/11902/stat : 11902 (pcs.big) R 11900 11902 11425 0 -1 4194304 14678 656 0 0 12974 10 0 0 25 0 1 0 56492351 57036800 12795 996147200 134512640 135215973 4294956304 18446744073709551615 134648275 0 0 4096 0 0 0 0 17 1 0 0
/proc/11902/statm: 13925 12795 402 171 0 12850 0
Current children cumulated CPU time (s) 129.84
Current children cumulated vsize (KiB) 55700

[startup+132.702 s]
/proc/loadavg: 1.96 1.08 0.44 3/73 11907
/proc/meminfo: memFree=1405680/2055920 swapFree=4192812/4192956
[pid=11902] ppid=11900 vsize=56096 CPUtime=131.43
/proc/11902/stat : 11902 (pcs.big) R 11900 11902 11425 0 -1 4194304 14777 656 0 0 13133 10 0 0 25 0 1 0 56492351 57442304 12894 996147200 134512640 135215973 4294956304 18446744073709551615 4158960014 0 0 4096 0 0 0 0 17 1 0 0
/proc/11902/statm: 14024 12894 402 171 0 12949 0
Current children cumulated CPU time (s) 131.43
Current children cumulated vsize (KiB) 56096

[startup+133.502 s]
/proc/loadavg: 1.96 1.08 0.44 3/73 11907
/proc/meminfo: memFree=1405360/2055920 swapFree=4192812/4192956
[pid=11902] ppid=11900 vsize=56228 CPUtime=132.21
/proc/11902/stat : 11902 (pcs.big) R 11900 11902 11425 0 -1 4194304 14821 656 0 0 13211 10 0 0 25 0 1 0 56492351 57577472 12938 996147200 134512640 135215973 4294956304 18446744073709551615 4158961145 0 0 4096 0 0 0 0 17 1 0 0
/proc/11902/statm: 14057 12938 402 171 0 12982 0
Current children cumulated CPU time (s) 132.21
Current children cumulated vsize (KiB) 56228

[startup+133.903 s]
/proc/loadavg: 1.96 1.08 0.44 3/73 11907
/proc/meminfo: memFree=1405360/2055920 swapFree=4192812/4192956
[pid=11902] ppid=11900 vsize=56360 CPUtime=132.62
/proc/11902/stat : 11902 (pcs.big) R 11900 11902 11425 0 -1 4194304 14842 656 0 0 13251 11 0 0 25 0 1 0 56492351 57712640 12959 996147200 134512640 135215973 4294956304 18446744073709551615 4158960146 0 0 4096 0 0 0 0 17 1 0 0
/proc/11902/statm: 14090 12959 402 171 0 13015 0
Current children cumulated CPU time (s) 132.62
Current children cumulated vsize (KiB) 56360

[startup+134.103 s]
/proc/loadavg: 1.96 1.08 0.44 3/73 11907
/proc/meminfo: memFree=1415536/2055920 swapFree=4192812/4192956
[pid=11902] ppid=11900 vsize=0 CPUtime=132.82
/proc/11902/stat : 11902 (pcs.big) R 11900 11902 11425 0 -1 4194308 14852 656 0 0 13271 11 0 0 25 0 1 0 56492351 0 0 996147200 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/11902/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 132.82
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 134.115
CPU time (s): 132.843
CPU user time (s): 132.72
CPU system time (s): 0.122981
CPU usage (%): 99.0515
Max. virtual memory (cumulated for all children) (KiB): 56360

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 132.72
system time used= 0.122981
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15508
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= 2925

runsolver used 0.19497 second user time and 0.425935 second system time

The end

Launcher Data 

Begin job on node49 at 2009-07-15 23:45:20
IDJOB=2058778
IDBENCH=53522
IDSOLVER=733
FILE ID=node49/2058778-1247694320
PBS_JOBID= 9521215
Free space on /tmp= 66376 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/langford/normalized-slangford-3-11-ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2058778-1247694320/watcher-2058778-1247694320 -o /tmp/evaluation-result-2058778-1247694320/solver-2058778-1247694320 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 984598156 HOME/instance-2058778-1247694320.xml

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

MD5SUM BENCH= 540723c3977a7f4946311e21f518088e
RANDOM SEED=984598156

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:       1471128 kB
Buffers:         39976 kB
Cached:         451800 kB
SwapCached:          0 kB
Active:         109288 kB
Inactive:       415216 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1471128 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1764 kB
Writeback:           0 kB
Mapped:          44200 kB
Slab:            45532 kB
Committed_AS:   541028 kB
PageTables:       1768 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= 66376 MiB
End job on node49 at 2009-07-15 23:47:34