Trace number 218872

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 74.7146 75.071

General information on the benchmark

NamechessboardColoration/
cc-25-25-2.xml
MD5SUM1e33651b78b554bdc5ee856706c28b13
Bench CategoryN-ARY-INT (n-ary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark8.31474
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables625
Number of constraints90000
Maximum constraint arity4
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension90000
Global constraints used (with number of constraints)

Solver Data (download as text)

0.01	c 
0.01	c Parsing xml file
0.01	c 	domains...............    0
0.01	c 	variables............. 0.02
0.02	c 	predicates............    0
0.02	c 	constraints........... 9.21
9.25	c Allocating memory
9.25	c 
9.25	c time limit = -1
9.25	c heuristic = dom/wdeg
9.25	c restart policy = No restart
9.25	c 
9.25	c Solving
9.25	c
74.76	s UNSATISFIABLE
74.76	d        UNSAT      4839 BTS        65 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/node44/watcher-218872-1168253563 -o ROOT/results/node44/solver-218872-1168253563 -C 1800 -M 900 /tmp/evaluation/218872-1168253563/mistral/bin/solver /tmp/evaluation/218872-1168253563/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 0.90 1.07 2/68 1823
/proc/meminfo: memFree=1730960/2055920 swapFree=4191892/4192956
[pid=1822] ppid=1820 vsize=6792 CPUtime=0
/proc/1822/stat : 1822 (solver) R 1820 1822 1537 0 -1 4194304 430 0 0 0 0 0 0 0 18 0 1 0 173755650 6955008 409 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 11250552 0 0 4096 0 0 0 0 17 1 0 0
/proc/1822/statm: 1698 409 370 92 0 30 0

[startup+0.102501 s]
/proc/loadavg: 0.93 0.90 1.07 2/68 1823
/proc/meminfo: memFree=1730960/2055920 swapFree=4191892/4192956
[pid=1822] ppid=1820 vsize=7704 CPUtime=0.09
/proc/1822/stat : 1822 (solver) R 1820 1822 1537 0 -1 4194304 990 0 0 0 9 0 0 0 18 0 1 0 173755650 7888896 958 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 11716165 0 0 4096 0 0 0 0 17 1 0 0
/proc/1822/statm: 1926 958 704 92 0 270 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7704

[startup+0.510545 s]
/proc/loadavg: 0.93 0.90 1.07 2/68 1823
/proc/meminfo: memFree=1730960/2055920 swapFree=4191892/4192956
[pid=1822] ppid=1820 vsize=9808 CPUtime=0.5
/proc/1822/stat : 1822 (solver) R 1820 1822 1537 0 -1 4194304 1536 0 0 0 50 0 0 0 21 0 1 0 173755650 10043392 1504 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 11716219 0 0 4096 0 0 0 0 17 1 0 0
/proc/1822/statm: 2452 1504 704 92 0 796 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 9808

[startup+1.33163 s]
/proc/loadavg: 0.93 0.90 1.07 3/84 1840
/proc/meminfo: memFree=1706256/2055920 swapFree=4191892/4192956
[pid=1822] ppid=1820 vsize=14208 CPUtime=1.32
/proc/1822/stat : 1822 (solver) R 1820 1822 1537 0 -1 4194304 2640 0 0 0 131 1 0 0 25 0 1 0 173755650 14548992 2608 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/1822/statm: 3552 2608 704 92 0 1896 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 14208

[startup+2.96879 s]
/proc/loadavg: 0.93 0.90 1.07 4/84 1840
/proc/meminfo: memFree=1694160/2055920 swapFree=4191892/4192956
[pid=1822] ppid=1820 vsize=22904 CPUtime=2.95
/proc/1822/stat : 1822 (solver) R 1820 1822 1537 0 -1 4194304 4811 0 0 0 293 2 0 0 25 0 1 0 173755650 23453696 4779 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 11716219 0 0 4096 0 0 0 0 17 1 0 0
/proc/1822/statm: 5726 4779 704 92 0 4070 0
Current children cumulated CPU time (s) 2.95
Current children cumulated vsize (KiB) 22904

[startup+6.27113 s]
/proc/loadavg: 1.17 0.95 1.09 4/84 1840
/proc/meminfo: memFree=1629280/2055920 swapFree=4191892/4192956
[pid=1822] ppid=1820 vsize=40492 CPUtime=6.25
/proc/1822/stat : 1822 (solver) R 1820 1822 1537 0 -1 4194304 9327 0 0 0 619 6 0 0 25 0 1 0 173755650 41463808 9175 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 11716219 0 0 4096 0 0 0 0 17 1 0 0
/proc/1822/statm: 10123 9175 704 92 0 8467 0
Current children cumulated CPU time (s) 6.25
Current children cumulated vsize (KiB) 40492

[startup+12.7268 s]
/proc/loadavg: 1.24 0.97 1.09 3/84 1840
/proc/meminfo: memFree=1573032/2055920 swapFree=4191892/4192956
[pid=1822] ppid=1820 vsize=76036 CPUtime=12.7
/proc/1822/stat : 1822 (solver) R 1820 1822 1537 0 -1 4194304 18277 0 0 0 1259 11 0 0 25 0 1 0 173755650 77860864 17925 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134637492 0 0 4096 0 0 0 0 17 1 0 0
/proc/1822/statm: 19009 17925 715 92 0 17353 0
Current children cumulated CPU time (s) 12.7
Current children cumulated vsize (KiB) 76036

[startup+25.5793 s]
/proc/loadavg: 1.41 1.02 1.11 3/84 1840
/proc/meminfo: memFree=1551728/2055920 swapFree=4191892/4192956
[pid=1822] ppid=1820 vsize=76036 CPUtime=25.44
/proc/1822/stat : 1822 (solver) R 1820 1822 1537 0 -1 4194304 18277 0 0 0 2533 11 0 0 25 0 1 0 173755650 77860864 17925 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134727366 0 0 4096 0 0 0 0 17 0 0 0
/proc/1822/statm: 19009 17925 715 92 0 17353 0
Current children cumulated CPU time (s) 25.44
Current children cumulated vsize (KiB) 76036

[startup+51.2197 s]
/proc/loadavg: 1.40 1.05 1.11 3/81 2154
/proc/meminfo: memFree=1662208/2055920 swapFree=4191892/4192956
[pid=1822] ppid=1820 vsize=76036 CPUtime=50.96
/proc/1822/stat : 1822 (solver) R 1820 1822 1537 0 -1 4194304 18277 0 0 0 5083 13 0 0 25 0 1 0 173755650 77860864 17925 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134727366 0 0 4096 0 0 0 0 17 0 0 0
/proc/1822/statm: 19009 17925 715 92 0 17353 0
Current children cumulated CPU time (s) 50.96
Current children cumulated vsize (KiB) 76036

Child status: 0
Real time (s): 75.071
CPU time (s): 74.7146
CPU user time (s): 74.5687
CPU system time (s): 0.145977
CPU usage (%): 99.5253
Max. virtual memory (cumulated for all children) (KiB): 76036

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 74.5687
system time used= 0.145977
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 18287
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= 1226

runsolver used 0.089986 s user time and 0.19497 s system time

The end

Launcher Data (download as text)

Begin job on node44 on Mon Jan  8 10:52:45 UTC 2007


IDJOB= 218872
IDBENCH= 5262
FILE ID= node44/218872-1168253563

PBS_JOBID= 3482027

Free space on /tmp= 66511 MiB

BENCH NAME= HOME/pub/bench/CPAI06/chessboardColoration/cc-25-25-2.xml
COMMAND LINE= /tmp/evaluation/218872-1168253563/mistral/bin/solver /tmp/evaluation/218872-1168253563/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node44/watcher-218872-1168253563 -o ROOT/results/node44/solver-218872-1168253563 -C 1800 -M 900  /tmp/evaluation/218872-1168253563/mistral/bin/solver /tmp/evaluation/218872-1168253563/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  1e33651b78b554bdc5ee856706c28b13

RANDOM SEED= 895636235

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		: 3000.213
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:       1731504 kB
Buffers:         36384 kB
Cached:         212736 kB
SwapCached:        304 kB
Active:         158836 kB
Inactive:       109680 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1731504 kB
SwapTotal:     4192956 kB
SwapFree:      4191892 kB
Dirty:           36964 kB
Writeback:           0 kB
Mapped:          28312 kB
Slab:            41588 kB
Committed_AS:  3713600 kB
PageTables:       1596 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= 66528 MiB



End job on node44 on Mon Jan  8 10:54:01 UTC 2007