Trace number 198441

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, and are wall clock time (not CPU 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
CSPtoSAT+minisat 0.3UNSAT 256.428 258.49

General information on the benchmark

Namepigeons/
pigeons-30-ord.xml
MD5SUMb181dd7a6ad6bd5c68cf7d41b4c95763
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 benchmark0.153976
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables30
Number of constraints870
Maximum constraint arity2
Maximum domain size29
Number of constraints which are defined in extension0
Number of constraints which are defined in intension870
Global constraints used (with number of constraints)

Solver Data (download as text)

0.01	c This is CSPtoSAT+minisat version 0.3
0.01	c (c) 2006 roussel@cril.univ-artois.fr
0.01	
0.01	c This solver internally uses a modified version of MiniSat2 version 061112
0.01	c MiniSat -- Copyright (c) 2003-2006, Niklas Een, Niklas Sorensson
0.01	
0.01	c parsing...
0.06	c ...done
0.06	c #SATvar=2552 #SATclauses=5010 #CSPpredicates=870
258.48	c SAT problem is solved
258.48	restarts              : 15
258.48	conflicts             : 58734          (229 /sec)
258.48	decisions             : 165279         (1.43 % random) (645 /sec)
258.48	propagations          : 16028199       (62513 /sec)
258.48	conflict literals     : 942737         (1.08 % deleted)
258.48	Memory used           : 9.15 MB
258.48	CPU time              : 256.398 s
258.48	
258.48	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node25/watcher-198441-1168053585 -o ROOT/results/node25/solver-198441-1168053585 -C 1800 -M 900 /tmp/evaluation/198441-1168053585/CSPtoSAT+minisat /tmp/evaluation/198441-1168053585/unknown.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 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

/proc/loadavg: 0.98 1.89 2.14 4/81 26110
/proc/meminfo: memFree=1283312/2055920 swapFree=4192812/4192956
[pid=26109] ppid=26107 vsize=6696 CPUtime=0
/proc/26109/stat : 26109 (CSPtoSAT+minisa) R 26107 26109 23642 0 -1 4194304 402 0 0 0 0 0 0 0 18 0 1 0 153754138 6856704 382 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 3768408 0 0 4096 0 0 0 0 17 1 0 0
/proc/26109/statm: 1674 382 357 52 0 30 0

[startup+0.104335 s]
/proc/loadavg: 0.98 1.89 2.14 4/81 26110
/proc/meminfo: memFree=1283312/2055920 swapFree=4192812/4192956
[pid=26109] ppid=26107 vsize=7316 CPUtime=0.09
/proc/26109/stat : 26109 (CSPtoSAT+minisa) R 26107 26109 23642 0 -1 4194304 983 0 0 0 9 0 0 0 18 0 1 0 153754138 7491584 925 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134671185 0 0 4096 0 0 0 0 17 1 0 0
/proc/26109/statm: 1829 925 719 52 0 197 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7316

[startup+0.512404 s]
/proc/loadavg: 0.98 1.89 2.14 4/81 26110
/proc/meminfo: memFree=1283312/2055920 swapFree=4192812/4192956
[pid=26109] ppid=26107 vsize=7448 CPUtime=0.5
/proc/26109/stat : 26109 (CSPtoSAT+minisa) R 26107 26109 23642 0 -1 4194304 1036 0 0 0 50 0 0 0 21 0 1 0 153754138 7626752 978 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134668878 0 0 4096 0 0 0 0 17 1 0 0
/proc/26109/statm: 1862 978 719 52 0 230 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 7448

[startup+1.33354 s]
/proc/loadavg: 0.98 1.89 2.14 2/81 26110
/proc/meminfo: memFree=1282160/2055920 swapFree=4192812/4192956
[pid=26109] ppid=26107 vsize=7580 CPUtime=1.32
/proc/26109/stat : 26109 (CSPtoSAT+minisa) R 26107 26109 23642 0 -1 4194304 1047 0 0 0 132 0 0 0 25 0 1 0 153754138 7761920 989 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134687669 0 0 4096 0 0 0 0 17 1 0 0
/proc/26109/statm: 1895 989 719 52 0 263 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 7580

[startup+2.97182 s]
/proc/loadavg: 0.98 1.87 2.14 2/81 26110
/proc/meminfo: memFree=1282096/2055920 swapFree=4192812/4192956
[pid=26109] ppid=26107 vsize=7580 CPUtime=2.95
/proc/26109/stat : 26109 (CSPtoSAT+minisa) R 26107 26109 23642 0 -1 4194304 1057 0 0 0 295 0 0 0 25 0 1 0 153754138 7761920 999 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134687405 0 0 4096 0 0 0 0 17 0 0 0
/proc/26109/statm: 1895 999 719 52 0 263 0
Current children cumulated CPU time (s) 2.95
Current children cumulated vsize (KiB) 7580

[startup+6.24938 s]
/proc/loadavg: 0.98 1.87 2.14 2/81 26131
/proc/meminfo: memFree=1279216/2055920 swapFree=4192812/4192956
[pid=26109] ppid=26107 vsize=7712 CPUtime=6.2
/proc/26109/stat : 26109 (CSPtoSAT+minisa) R 26107 26109 23642 0 -1 4194304 1078 0 0 0 620 0 0 0 25 0 1 0 153754138 7897088 1020 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134687408 0 0 4096 0 0 0 0 17 1 0 0
/proc/26109/statm: 1928 1020 719 52 0 296 0
Current children cumulated CPU time (s) 6.2
Current children cumulated vsize (KiB) 7712

[startup+12.7105 s]
/proc/loadavg: 1.07 1.86 2.13 3/86 26136
/proc/meminfo: memFree=1269320/2055920 swapFree=4192812/4192956
[pid=26109] ppid=26107 vsize=7712 CPUtime=12.64
/proc/26109/stat : 26109 (CSPtoSAT+minisa) R 26107 26109 23642 0 -1 4194304 1101 0 0 0 1263 1 0 0 25 0 1 0 153754138 7897088 1043 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134687403 0 0 4096 0 0 0 0 17 0 0 0
/proc/26109/statm: 1928 1043 719 52 0 296 0
Current children cumulated CPU time (s) 12.64
Current children cumulated vsize (KiB) 7712

[startup+25.5197 s]
/proc/loadavg: 1.21 1.86 2.13 3/86 26136
/proc/meminfo: memFree=1268616/2055920 swapFree=4192812/4192956
[pid=26109] ppid=26107 vsize=7880 CPUtime=25.36
/proc/26109/stat : 26109 (CSPtoSAT+minisa) R 26107 26109 23642 0 -1 4194304 1141 0 0 0 2535 1 0 0 25 0 1 0 153754138 8069120 1083 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134687642 0 0 4096 0 0 0 0 17 0 0 0
/proc/26109/statm: 1970 1083 719 52 0 338 0
Current children cumulated CPU time (s) 25.36
Current children cumulated vsize (KiB) 7880

[startup+51.147 s]
/proc/loadavg: 1.48 1.87 2.12 3/86 26136
/proc/meminfo: memFree=1267016/2055920 swapFree=4192812/4192956
[pid=26109] ppid=26107 vsize=8184 CPUtime=50.75
/proc/26109/stat : 26109 (CSPtoSAT+minisa) R 26107 26109 23642 0 -1 4194304 1213 0 0 0 5074 1 0 0 25 0 1 0 153754138 8380416 1155 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134687652 0 0 4096 0 0 0 0 17 0 0 0
/proc/26109/statm: 2046 1155 719 52 0 414 0
Current children cumulated CPU time (s) 50.75
Current children cumulated vsize (KiB) 8184

[startup+102.401 s]
/proc/loadavg: 1.86 1.91 2.12 3/86 26136
/proc/meminfo: memFree=1264392/2055920 swapFree=4192812/4192956
[pid=26109] ppid=26107 vsize=8720 CPUtime=101.59
/proc/26109/stat : 26109 (CSPtoSAT+minisa) R 26107 26109 23642 0 -1 4194304 1318 0 0 0 10158 1 0 0 25 0 1 0 153754138 8929280 1260 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134687525 0 0 4096 0 0 0 0 17 0 0 0
/proc/26109/statm: 2180 1260 719 52 0 548 0
Current children cumulated CPU time (s) 101.59
Current children cumulated vsize (KiB) 8720

[startup+162.487 s]
/proc/loadavg: 1.95 1.92 2.10 3/86 26136
/proc/meminfo: memFree=1261576/2055920 swapFree=4192812/4192956
[pid=26109] ppid=26107 vsize=8980 CPUtime=161.19
/proc/26109/stat : 26109 (CSPtoSAT+minisa) R 26107 26109 23642 0 -1 4194304 1419 0 0 0 16118 1 0 0 25 0 1 0 153754138 9195520 1361 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134687525 0 0 4096 0 0 0 0 17 0 0 0
/proc/26109/statm: 2245 1361 719 52 0 613 0
Current children cumulated CPU time (s) 161.19
Current children cumulated vsize (KiB) 8980

[startup+222.574 s]
/proc/loadavg: 1.98 1.93 2.09 3/86 26136
/proc/meminfo: memFree=1259144/2055920 swapFree=4192812/4192956
[pid=26109] ppid=26107 vsize=9240 CPUtime=220.77
/proc/26109/stat : 26109 (CSPtoSAT+minisa) R 26107 26109 23642 0 -1 4194304 1472 0 0 0 22075 2 0 0 25 0 1 0 153754138 9461760 1414 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134687412 0 0 4096 0 0 0 0 17 0 0 0
/proc/26109/statm: 2310 1414 719 52 0 678 0
Current children cumulated CPU time (s) 220.77
Current children cumulated vsize (KiB) 9240

Child status: 0
Real time (s): 258.49
CPU time (s): 256.428
CPU user time (s): 256.403
CPU system time (s): 0.024996
CPU usage (%): 99.2021
Max. virtual memory (cumulated for all children) (KiB): 9368

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 256.403
system time used= 0.024996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1512
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= 12
involuntary context switches= 11394

runsolver used 0.233964 s user time and 0.689895 s system time

The end

Launcher Data (download as text)

Begin job on node25 on Sat Jan  6 03:20:00 UTC 2007


IDJOB= 198441
IDBENCH= 3555
FILE ID= node25/198441-1168053585

PBS_JOBID= 3475454

Free space on /tmp= 66550 MiB

BENCH NAME= HOME/pub/bench/CPAI06/pigeons/pigeons-30-ord.xml
COMMAND LINE= /tmp/evaluation/198441-1168053585/CSPtoSAT+minisat /tmp/evaluation/198441-1168053585/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node25/watcher-198441-1168053585 -o ROOT/results/node25/solver-198441-1168053585 -C 1800 -M 900  /tmp/evaluation/198441-1168053585/CSPtoSAT+minisat /tmp/evaluation/198441-1168053585/unknown.xml

META MD5SUM SOLVER= 0ab327eaa5be249b47b2f4b19927f0b0
MD5SUM BENCH=  b181dd7a6ad6bd5c68cf7d41b4c95763

RANDOM SEED= 338489866

TIME LIMIT= 1800 seconds

MEMORY LIMIT= 900 MiB


/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		: 3000.279
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		: 3000.279
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:       1283728 kB
Buffers:         48820 kB
Cached:         593236 kB
SwapCached:          0 kB
Active:         157952 kB
Inactive:       532780 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1283728 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1756 kB
Writeback:           0 kB
Mapped:          67688 kB
Slab:            66544 kB
Committed_AS:  2817264 kB
PageTables:       2144 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= 66548 MiB



End job on node25 on Sat Jan  6 03:24:36 UTC 2007