Trace number 2082219

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 44.5312 44.7549

DiagnosticValue
ASSIGNMENTS47305

General information on the benchmark

Namecsp/langford2/
normalized-langford-2-10.xml
MD5SUMd438b1553ec5710c6f35b3a8e61b7288
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 benchmark0.887865
Satisfiable
(Un)Satisfiability was proved
Number of variables20
Number of constraints200
Maximum constraint arity2
Maximum domain size20
Number of constraints which are defined in extension0
Number of constraints which are defined in intension200
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
0.17/0.21	c Seed is 577060437
0.17/0.21	c Constructing HOME/instance-2082219-1247720819.xml 
0.17/0.21	c deduced all_different(V1,V2,V3,V4,V5,V6,V7,V8,V9,V10,V11,V12,V13,V14,V15,V16,V17,V18,V19,V0)
0.17/0.21	c  with 201 constraints
0.17/0.21	c Solving 47305 backtracks 17 restarts
44.46/44.73	s UNSATISFIABLE
44.46/44.73	d ASSIGNMENTS 47305

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-2082219-1247720819/watcher-2082219-1247720819 -o /tmp/evaluation-result-2082219-1247720819/solver-2082219-1247720819 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 577060437 HOME/instance-2082219-1247720819.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: 2.63 2.40 2.16 4/72 18738
/proc/meminfo: memFree=1436008/2055920 swapFree=4192812/4192956
[pid=18738] ppid=18736 vsize=5260 CPUtime=0
/proc/18738/stat : 18738 (pcssolve) R 18736 18738 15459 0 -1 4194304 68 0 0 0 0 0 0 0 20 0 1 0 59149163 5386240 51 996147200 4194304 4889804 548682068800 18446744073709551615 245480083251 0 0 4096 0 0 0 0 17 1 0 0
/proc/18738/statm: 1315 51 37 169 0 14 0

[startup+0.0950501 s]
/proc/loadavg: 2.63 2.40 2.16 4/72 18738
/proc/meminfo: memFree=1436008/2055920 swapFree=4192812/4192956
[pid=18738] ppid=18736 vsize=4624 CPUtime=0.07
/proc/18738/stat : 18738 (pcs.big) R 18736 18738 15459 0 -1 4194304 896 817 0 0 7 0 0 0 18 0 1 0 59149163 4734976 505 996147200 134512640 135215973 4294956304 18446744073709551615 3294843 0 0 4096 0 0 0 0 17 1 0 0
/proc/18738/statm: 1156 505 408 171 0 81 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 4624

[startup+0.102047 s]
/proc/loadavg: 2.63 2.40 2.16 4/72 18738
/proc/meminfo: memFree=1436008/2055920 swapFree=4192812/4192956
[pid=18738] ppid=18736 vsize=4752 CPUtime=0.07
/proc/18738/stat : 18738 (pcs.big) R 18736 18738 15459 0 -1 4194304 900 817 0 0 7 0 0 0 18 0 1 0 59149163 4866048 509 996147200 134512640 135215973 4294956304 18446744073709551615 4158960053 0 0 4096 0 0 0 0 17 1 0 0
/proc/18738/statm: 1188 509 408 171 0 113 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 4752

[startup+0.301067 s]
/proc/loadavg: 2.63 2.40 2.16 4/72 18738
/proc/meminfo: memFree=1436008/2055920 swapFree=4192812/4192956
[pid=18738] ppid=18736 vsize=5268 CPUtime=0.27
/proc/18738/stat : 18738 (pcs.big) R 18736 18738 15459 0 -1 4194304 1030 817 0 0 27 0 0 0 19 0 1 0 59149163 5394432 639 996147200 134512640 135215973 4294956304 18446744073709551615 3294843 0 0 4096 0 0 0 0 17 1 0 0
/proc/18738/statm: 1317 639 408 171 0 242 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 5268

[startup+0.70211 s]
/proc/loadavg: 2.63 2.40 2.16 4/72 18738
/proc/meminfo: memFree=1436008/2055920 swapFree=4192812/4192956
[pid=18738] ppid=18736 vsize=6352 CPUtime=0.67
/proc/18738/stat : 18738 (pcs.big) R 18736 18738 15459 0 -1 4194304 1292 817 0 0 67 0 0 0 22 0 1 0 59149163 6504448 901 996147200 134512640 135215973 4294956304 18446744073709551615 134923604 0 0 4096 0 0 0 0 17 1 0 0
/proc/18738/statm: 1588 901 408 171 0 513 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 6352

[startup+1.50219 s]
/proc/loadavg: 2.63 2.40 2.16 3/73 18744
/proc/meminfo: memFree=1433312/2055920 swapFree=4192812/4192956
[pid=18738] ppid=18736 vsize=8304 CPUtime=1.47
/proc/18738/stat : 18738 (pcs.big) R 18736 18738 15459 0 -1 4194304 1799 817 0 0 146 1 0 0 25 0 1 0 59149163 8503296 1375 996147200 134512640 135215973 4294956304 18446744073709551615 134599830 0 0 4096 0 0 0 0 17 1 0 0
/proc/18738/statm: 2076 1375 408 171 0 1001 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 8304

[startup+3.10135 s]
/proc/loadavg: 2.63 2.40 2.16 3/73 18744
/proc/meminfo: memFree=1430496/2055920 swapFree=4192812/4192956
[pid=18738] ppid=18736 vsize=12088 CPUtime=3.06
/proc/18738/stat : 18738 (pcs.big) R 18736 18738 15459 0 -1 4194304 2816 817 0 0 304 2 0 0 25 0 1 0 59149163 12378112 2327 996147200 134512640 135215973 4294956304 18446744073709551615 4158960058 0 0 4096 0 0 0 0 17 1 0 0
/proc/18738/statm: 3022 2327 408 171 0 1947 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 12088

[startup+6.30168 s]
/proc/loadavg: 2.58 2.40 2.16 3/73 18744
/proc/meminfo: memFree=1422432/2055920 swapFree=4192812/4192956
[pid=18738] ppid=18736 vsize=19728 CPUtime=6.24
/proc/18738/stat : 18738 (pcs.big) R 18736 18738 15459 0 -1 4194304 4851 817 0 0 621 3 0 0 25 0 1 0 59149163 20201472 4200 996147200 134512640 135215973 4294956304 18446744073709551615 3294843 0 0 4096 0 0 0 0 17 1 0 0
/proc/18738/statm: 4932 4200 408 171 0 3857 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 19728

[startup+12.7013 s]
/proc/loadavg: 2.53 2.39 2.16 3/73 18744
/proc/meminfo: memFree=1406816/2055920 swapFree=4192812/4192956
[pid=18738] ppid=18736 vsize=34920 CPUtime=12.62
/proc/18738/stat : 18738 (pcs.big) R 18736 18738 15459 0 -1 4194304 8856 817 0 0 1256 6 0 0 25 0 1 0 59149163 35758080 7883 996147200 134512640 135215973 4294956304 18446744073709551615 134583557 0 0 4096 0 0 0 0 17 1 0 0
/proc/18738/statm: 8730 7883 408 171 0 7655 0
Current children cumulated CPU time (s) 12.62
Current children cumulated vsize (KiB) 34920

[startup+25.5016 s]
/proc/loadavg: 2.41 2.37 2.16 3/73 18744
/proc/meminfo: memFree=1375328/2055920 swapFree=4192812/4192956
[pid=18738] ppid=18736 vsize=64892 CPUtime=25.36
/proc/18738/stat : 18738 (pcs.big) R 18736 18738 15459 0 -1 4194304 16827 817 0 0 2525 11 0 0 25 0 1 0 59149163 66449408 15212 996147200 134512640 135215973 4294956304 18446744073709551615 134677100 0 0 4096 0 0 0 0 17 1 0 0
/proc/18738/statm: 16223 15212 408 171 0 15148 0
Current children cumulated CPU time (s) 25.36
Current children cumulated vsize (KiB) 64892

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

[startup+38.3019 s]
/proc/loadavg: 2.35 2.36 2.16 3/73 18744
/proc/meminfo: memFree=1346464/2055920 swapFree=4192812/4192956
[pid=18738] ppid=18736 vsize=96964 CPUtime=38.1
/proc/18738/stat : 18738 (pcs.big) R 18736 18738 15459 0 -1 4194304 25287 817 0 0 3794 16 0 0 25 0 1 0 59149163 99291136 22390 996147200 134512640 135215973 4294956304 18446744073709551615 3294843 0 0 4096 0 0 0 0 17 1 0 0
/proc/18738/statm: 24241 22390 408 171 0 23166 0
Current children cumulated CPU time (s) 38.1
Current children cumulated vsize (KiB) 96964

[startup+41.5013 s]
/proc/loadavg: 2.32 2.35 2.15 3/73 18744
/proc/meminfo: memFree=1338912/2055920 swapFree=4192812/4192956
[pid=18738] ppid=18736 vsize=103364 CPUtime=41.27
/proc/18738/stat : 18738 (pcs.big) R 18736 18738 15459 0 -1 4194304 26983 817 0 0 4110 17 0 0 25 0 1 0 59149163 105844736 24086 996147200 134512640 135215973 4294956304 18446744073709551615 134902059 0 0 4096 0 0 0 0 17 1 0 0
/proc/18738/statm: 25841 24087 408 171 0 24766 0
Current children cumulated CPU time (s) 41.27
Current children cumulated vsize (KiB) 103364

[startup+43.1014 s]
/proc/loadavg: 2.32 2.35 2.15 3/73 18744
/proc/meminfo: memFree=1333984/2055920 swapFree=4192812/4192956
[pid=18738] ppid=18736 vsize=106500 CPUtime=42.87
/proc/18738/stat : 18738 (pcs.big) R 18736 18738 15459 0 -1 4194304 27815 817 0 0 4269 18 0 0 25 0 1 0 59149163 109056000 24918 996147200 134512640 135215973 4294956304 18446744073709551615 134599882 0 0 4096 0 0 0 0 17 1 0 0
/proc/18738/statm: 26625 24918 408 171 0 25550 0
Current children cumulated CPU time (s) 42.87
Current children cumulated vsize (KiB) 106500

[startup+43.9025 s]
/proc/loadavg: 2.32 2.35 2.15 3/73 18744
/proc/meminfo: memFree=1331744/2055920 swapFree=4192812/4192956
[pid=18738] ppid=18736 vsize=108048 CPUtime=43.67
/proc/18738/stat : 18738 (pcs.big) R 18736 18738 15459 0 -1 4194304 28233 817 0 0 4349 18 0 0 25 0 1 0 59149163 110641152 25336 996147200 134512640 135215973 4294956304 18446744073709551615 4158961571 0 0 4096 0 0 0 0 17 1 0 0
/proc/18738/statm: 27012 25336 408 171 0 25937 0
Current children cumulated CPU time (s) 43.67
Current children cumulated vsize (KiB) 108048

[startup+44.3025 s]
/proc/loadavg: 2.32 2.35 2.15 3/73 18744
/proc/meminfo: memFree=1331744/2055920 swapFree=4192812/4192956
[pid=18738] ppid=18736 vsize=108824 CPUtime=44.06
/proc/18738/stat : 18738 (pcs.big) R 18736 18738 15459 0 -1 4194304 28436 817 0 0 4388 18 0 0 25 0 1 0 59149163 111435776 25539 996147200 134512640 135215973 4294956304 18446744073709551615 134641100 0 0 4096 0 0 0 0 17 1 0 0
/proc/18738/statm: 27206 25539 408 171 0 26131 0
Current children cumulated CPU time (s) 44.06
Current children cumulated vsize (KiB) 108824

[startup+44.7026 s]
/proc/loadavg: 2.32 2.35 2.15 3/73 18744
/proc/meminfo: memFree=1331744/2055920 swapFree=4192812/4192956
[pid=18738] ppid=18736 vsize=107164 CPUtime=44.46
/proc/18738/stat : 18738 (pcs.big) R 18736 18738 15459 0 -1 4194304 28557 817 0 0 4428 18 0 0 25 0 1 0 59149163 109735936 25288 996147200 134512640 135215973 4294956304 18446744073709551615 134532677 0 0 4096 0 0 0 0 17 1 0 0
/proc/18738/statm: 26791 25288 408 171 0 25716 0
Current children cumulated CPU time (s) 44.46
Current children cumulated vsize (KiB) 107164

Child status: 0
Real time (s): 44.7549
CPU time (s): 44.5312
CPU user time (s): 44.3173
CPU system time (s): 0.213967
CPU usage (%): 99.5003
Max. virtual memory (cumulated for all children) (KiB): 109084

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 44.3173
system time used= 0.213967
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 29377
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= 541

runsolver used 0.040993 second user time and 0.12998 second system time

The end

Launcher Data 

Begin job on node17 at 2009-07-16 07:06:59
IDJOB=2082219
IDBENCH=57556
IDSOLVER=733
FILE ID=node17/2082219-1247720819
PBS_JOBID= 9521314
Free space on /tmp= 66360 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/langford2/normalized-langford-2-10.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2082219-1247720819/watcher-2082219-1247720819 -o /tmp/evaluation-result-2082219-1247720819/solver-2082219-1247720819 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 577060437 HOME/instance-2082219-1247720819.xml

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

MD5SUM BENCH= d438b1553ec5710c6f35b3a8e61b7288
RANDOM SEED=577060437

node17.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		: 3000.213
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		: 3000.213
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:       1436488 kB
Buffers:         93000 kB
Cached:         323364 kB
SwapCached:          0 kB
Active:         165708 kB
Inactive:       373724 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1436488 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1744 kB
Writeback:           0 kB
Mapped:         134568 kB
Slab:            65004 kB
Committed_AS:   630588 kB
PageTables:       2080 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= 66356 MiB
End job on node17 at 2009-07-16 07:07:44