Trace number 221756

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
Mistral 2006-12-04UNSAT 259.649 261.63

General information on the benchmark

Namerandom/rand-2-24/
rand-24-24-276-139-54021_ext.xml
MD5SUMa6fde96fec027ebcf35c7c234300ac23
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 benchmark56.3774
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables24
Number of constraints276
Maximum constraint arity2
Maximum domain size24
Number of constraints which are defined in extension276
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

0.20	c 
0.20	c Parsing xml file
0.20	c 	domains...............    0
0.20	c 	variables.............    0
0.20	c 	relations............. 0.07
0.20	c 	constraints...........    0
0.20	c Allocating memory
0.20	c 
0.20	c time limit = -1
0.20	c heuristic = dom/wdeg
0.20	c restart policy = No restart
0.20	c 
0.20	c Solving
0.20	c
261.61	s UNSATISFIABLE
261.61	d        UNSAT   1079125 BTS   2.6e+02 s

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/node76/watcher-221756-1168261698 -o ROOT/results/node76/solver-221756-1168261698 -C 1800 -M 900 /tmp/evaluation/221756-1168261698/mistral/bin/solver /tmp/evaluation/221756-1168261698/unknown.xml -v 1 

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: 0.93 0.98 0.99 4/89 19870
/proc/meminfo: memFree=1828992/2055888 swapFree=4095388/4096564
[pid=19869] ppid=19867 vsize=18544 CPUtime=0
/proc/19869/stat : 19869 (runsolver) R 19867 19869 19581 0 -1 4194368 15 0 0 0 0 0 0 0 23 0 1 0 174567008 18989056 278 18446744073709551615 4194304 4267372 548682069056 18446744073709551615 206843737111 0 0 4096 24578 0 0 0 17 0 0 0
/proc/19869/statm: 4636 278 243 17 0 2626 0

[startup+0.107518 s]
/proc/loadavg: 0.93 0.98 0.99 4/89 19870
/proc/meminfo: memFree=1828992/2055888 swapFree=4095388/4096564
[pid=19869] ppid=19867 vsize=7844 CPUtime=0.09
/proc/19869/stat : 19869 (solver) R 19867 19869 19581 0 -1 4194304 1058 0 0 0 9 0 0 0 18 0 1 0 174567008 8032256 1027 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134722287 0 0 4096 0 0 0 0 17 1 0 0
/proc/19869/statm: 1961 1027 707 92 0 304 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7844

[startup+0.515595 s]
/proc/loadavg: 0.93 0.98 0.99 4/89 19870
/proc/meminfo: memFree=1828992/2055888 swapFree=4095388/4096564
[pid=19869] ppid=19867 vsize=7844 CPUtime=0.5
/proc/19869/stat : 19869 (solver) R 19867 19869 19581 0 -1 4194304 1058 0 0 0 50 0 0 0 22 0 1 0 174567008 8032256 1027 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134790337 0 0 4096 0 0 0 0 17 1 0 0
/proc/19869/statm: 1961 1027 707 92 0 304 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 7844

[startup+1.34076 s]
/proc/loadavg: 0.93 0.98 0.99 4/89 19870
/proc/meminfo: memFree=1791424/2055888 swapFree=4095388/4096564
[pid=19869] ppid=19867 vsize=7844 CPUtime=1.32
/proc/19869/stat : 19869 (solver) R 19867 19869 19581 0 -1 4194304 1058 0 0 0 132 0 0 0 25 0 1 0 174567008 8032256 1027 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134639591 0 0 4096 0 0 0 0 17 1 0 0
/proc/19869/statm: 1961 1027 707 92 0 304 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 7844

[startup+2.98708 s]
/proc/loadavg: 1.01 1.00 1.00 3/90 19871
/proc/meminfo: memFree=1787704/2055888 swapFree=4095388/4096564
[pid=19869] ppid=19867 vsize=7844 CPUtime=2.95
/proc/19869/stat : 19869 (solver) R 19867 19869 19581 0 -1 4194304 1058 0 0 0 295 0 0 0 25 0 1 0 174567008 8032256 1027 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134637510 0 0 4096 0 0 0 0 17 1 0 0
/proc/19869/statm: 1961 1027 707 92 0 304 0
Current children cumulated CPU time (s) 2.95
Current children cumulated vsize (KiB) 7844

[startup+6.26672 s]
/proc/loadavg: 1.01 1.00 1.00 3/90 19871
/proc/meminfo: memFree=1781304/2055888 swapFree=4095388/4096564
[pid=19869] ppid=19867 vsize=7844 CPUtime=6.21
/proc/19869/stat : 19869 (solver) R 19867 19869 19581 0 -1 4194304 1058 0 0 0 621 0 0 0 25 0 1 0 174567008 8032256 1027 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134712829 0 0 4096 0 0 0 0 17 1 0 0
/proc/19869/statm: 1961 1027 707 92 0 304 0
Current children cumulated CPU time (s) 6.21
Current children cumulated vsize (KiB) 7844

[startup+12.723 s]
/proc/loadavg: 1.16 1.03 1.01 3/90 19871
/proc/meminfo: memFree=1775288/2055888 swapFree=4095388/4096564
[pid=19869] ppid=19867 vsize=7844 CPUtime=12.61
/proc/19869/stat : 19869 (solver) R 19867 19869 19581 0 -1 4194304 1058 0 0 0 1261 0 0 0 25 0 1 0 174567008 8032256 1027 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134637793 0 0 4096 0 0 0 0 17 1 0 0
/proc/19869/statm: 1961 1027 707 92 0 304 0
Current children cumulated CPU time (s) 12.61
Current children cumulated vsize (KiB) 7844

[startup+25.5295 s]
/proc/loadavg: 1.29 1.06 1.02 3/90 19871
/proc/meminfo: memFree=1769016/2055888 swapFree=4095388/4096564
[pid=19869] ppid=19867 vsize=7844 CPUtime=25.32
/proc/19869/stat : 19869 (solver) R 19867 19869 19581 0 -1 4194304 1058 0 0 0 2532 0 0 0 25 0 1 0 174567008 8032256 1027 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134727366 0 0 4096 0 0 0 0 17 1 0 0
/proc/19869/statm: 1961 1027 707 92 0 304 0
Current children cumulated CPU time (s) 25.32
Current children cumulated vsize (KiB) 7844

[startup+51.1575 s]
/proc/loadavg: 1.53 1.14 1.04 3/90 19871
/proc/meminfo: memFree=1746360/2055888 swapFree=4095388/4096564
[pid=19869] ppid=19867 vsize=7844 CPUtime=50.76
/proc/19869/stat : 19869 (solver) R 19867 19869 19581 0 -1 4194304 1058 0 0 0 5076 0 0 0 25 0 1 0 174567008 8032256 1027 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134708377 0 0 4096 0 0 0 0 17 1 0 0
/proc/19869/statm: 1961 1027 707 92 0 304 0
Current children cumulated CPU time (s) 50.76
Current children cumulated vsize (KiB) 7844

[startup+102.37 s]
/proc/loadavg: 1.80 1.27 1.09 3/90 19871
/proc/meminfo: memFree=1746424/2055888 swapFree=4095388/4096564
[pid=19869] ppid=19867 vsize=7844 CPUtime=101.59
/proc/19869/stat : 19869 (solver) R 19867 19869 19581 0 -1 4194304 1058 0 0 0 10159 0 0 0 25 0 1 0 174567008 8032256 1027 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134790588 0 0 4096 0 0 0 0 17 1 0 0
/proc/19869/statm: 1961 1027 707 92 0 304 0
Current children cumulated CPU time (s) 101.59
Current children cumulated vsize (KiB) 7844

[startup+162.453 s]
/proc/loadavg: 1.93 1.41 1.15 3/90 19871
/proc/meminfo: memFree=1746360/2055888 swapFree=4095388/4096564
[pid=19869] ppid=19867 vsize=7844 CPUtime=161.22
/proc/19869/stat : 19869 (solver) R 19867 19869 19581 0 -1 4194304 1058 0 0 0 16122 0 0 0 25 0 1 0 174567008 8032256 1027 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134637385 0 0 4096 0 0 0 0 17 1 0 0
/proc/19869/statm: 1961 1027 707 92 0 304 0
Current children cumulated CPU time (s) 161.22
Current children cumulated vsize (KiB) 7844

[startup+222.542 s]
/proc/loadavg: 1.97 1.51 1.20 4/90 19871
/proc/meminfo: memFree=1746424/2055888 swapFree=4095388/4096564
[pid=19869] ppid=19867 vsize=7844 CPUtime=220.85
/proc/19869/stat : 19869 (solver) R 19867 19869 19581 0 -1 4194304 1058 0 0 0 22085 0 0 0 25 0 1 0 174567008 8032256 1027 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134708368 0 0 4096 0 0 0 0 17 1 0 0
/proc/19869/statm: 1961 1027 707 92 0 304 0
Current children cumulated CPU time (s) 220.85
Current children cumulated vsize (KiB) 7844

Child status: 0
Real time (s): 261.63
CPU time (s): 259.649
CPU user time (s): 259.644
CPU system time (s): 0.004999
CPU usage (%): 99.2427
Max. virtual memory (cumulated for all children) (KiB): 7844

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 259.644
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1068
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= 13
involuntary context switches= 9732

runsolver used 0.282956 s user time and 0.6539 s system time

The end

Launcher Data (download as text)

Begin job on node76 on Mon Jan  8 13:08:19 UTC 2007


IDJOB= 221756
IDBENCH= 5466
FILE ID= node76/221756-1168261698

PBS_JOBID= 3482653

Free space on /tmp= 66643 MiB

BENCH NAME= HOME/pub/bench/CPAI06/random/rand-2-24/rand-24-24-276-139-54021_ext.xml
COMMAND LINE= /tmp/evaluation/221756-1168261698/mistral/bin/solver /tmp/evaluation/221756-1168261698/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node76/watcher-221756-1168261698 -o ROOT/results/node76/solver-221756-1168261698 -C 1800 -M 900  /tmp/evaluation/221756-1168261698/mistral/bin/solver /tmp/evaluation/221756-1168261698/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  a6fde96fec027ebcf35c7c234300ac23

RANDOM SEED= 677938164

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		: 3000.254
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	: 6006.17
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		: 3000.254
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	: 5999.42
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055888 kB
MemFree:       1829792 kB
Buffers:         43060 kB
Cached:         101760 kB
SwapCached:        428 kB
Active:         105364 kB
Inactive:        73260 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055888 kB
LowFree:       1829792 kB
SwapTotal:     4096564 kB
SwapFree:      4095388 kB
Dirty:            6076 kB
Writeback:           0 kB
Mapped:          52396 kB
Slab:            32944 kB
Committed_AS:  7257044 kB
PageTables:       1856 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264388 kB
VmallocChunk: 536606243 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66643 MiB



End job on node76 on Mon Jan  8 13:12:41 UTC 2007