Trace number 199221

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 206.566 209.955

General information on the benchmark

Nameknights/
knights-25-9.xml
MD5SUMff6db571c9963ef273115b40e7595a31
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 benchmark2.28265
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables9
Number of constraints36
Maximum constraint arity2
Maximum domain size625
Number of constraints which are defined in extension0
Number of constraints which are defined in intension36
Global constraints used (with number of constraints)

Solver Data (download as text)

2.67	c 
2.67	c Parsing xml file
2.67	c 	domains...............    0
2.68	c 	variables.............    0
2.68	c 	predicates............    0
2.68	c 	constraints...........    0
2.68	c Allocating memory
2.68	c 
2.68	c time limit = -1
2.68	c heuristic = dom/wdeg
2.68	c restart policy = No restart
2.68	c 
2.68	c Solving
2.68	c
209.95	s UNSATISFIABLE
209.95	d        UNSAT       913 BTS   2.1e+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/node38/watcher-199221-1168133025 -o ROOT/results/node38/solver-199221-1168133025 -C 1800 -M 900 /tmp/evaluation/199221-1168133025/mistral/bin/solver /tmp/evaluation/199221-1168133025/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: 4.16 3.54 3.13 5/81 1312
/proc/meminfo: memFree=136856/2055920 swapFree=4192812/4192956
[pid=1311] ppid=1309 vsize=18540 CPUtime=0
/proc/1311/stat : 1311 (runsolver) R 1309 1311 32610 0 -1 4194368 16 0 0 0 0 0 0 0 21 0 1 0 161702957 18984960 279 18446744073709551615 4194304 4267372 548682069056 18446744073709551615 266890439975 0 0 4096 24578 0 0 0 17 1 0 0
/proc/1311/statm: 4635 279 244 17 0 2626 0

[startup+0.108602 s]
/proc/loadavg: 4.16 3.54 3.13 5/81 1312
/proc/meminfo: memFree=136856/2055920 swapFree=4192812/4192956
[pid=1311] ppid=1309 vsize=18540 CPUtime=0
/proc/1311/stat : 1311 (runsolver) D 1309 1311 32610 0 -1 4194368 16 0 0 0 0 0 0 0 21 0 1 0 161702957 18984960 279 18446744073709551615 4194304 4267372 548682069056 18446744073709551615 266890439975 0 0 4096 24578 18446744071563608240 0 0 17 1 0 0
/proc/1311/statm: 4635 279 244 17 0 2626 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 18540

[startup+0.521684 s]
/proc/loadavg: 4.16 3.54 3.13 5/81 1312
/proc/meminfo: memFree=136856/2055920 swapFree=4192812/4192956
[pid=1311] ppid=1309 vsize=4552 CPUtime=0
/proc/1311/stat : 1311 (solver) D 1309 1311 32610 0 -1 4194304 51 0 3 0 0 0 0 0 18 0 1 0 161702957 4661248 38 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 8606628 0 0 4096 0 18446744071563608240 0 0 17 1 0 0
/proc/1311/statm: 1138 38 30 92 0 19 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 4552

[startup+1.34284 s]
/proc/loadavg: 4.07 3.53 3.13 2/83 1314
/proc/meminfo: memFree=112776/2055920 swapFree=4192812/4192956
[pid=1311] ppid=1309 vsize=5492 CPUtime=0
/proc/1311/stat : 1311 (solver) D 1309 1311 32610 0 -1 4194304 60 0 6 0 0 0 0 0 18 0 1 0 161702957 5623808 49 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 8606628 0 0 4096 0 18446744071563479169 0 0 17 1 0 0
/proc/1311/statm: 1373 49 38 92 0 24 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5492

[startup+2.98017 s]
/proc/loadavg: 4.07 3.53 3.13 2/82 1314
/proc/meminfo: memFree=88656/2055920 swapFree=4192812/4192956
[pid=1311] ppid=1309 vsize=7312 CPUtime=0.31
/proc/1311/stat : 1311 (solver) R 1309 1311 32610 0 -1 4194304 865 0 31 0 30 1 0 0 19 0 1 0 161702957 7487488 864 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134790709 0 0 4096 0 0 0 0 17 0 0 0
/proc/1311/statm: 1828 864 713 92 0 172 0
Current children cumulated CPU time (s) 0.31
Current children cumulated vsize (KiB) 7312

[startup+6.26681 s]
/proc/loadavg: 4.14 3.56 3.14 3/81 1314
/proc/meminfo: memFree=28696/2055920 swapFree=4192812/4192956
[pid=1311] ppid=1309 vsize=7312 CPUtime=3.5
/proc/1311/stat : 1311 (solver) R 1309 1311 32610 0 -1 4194304 865 0 31 0 347 3 0 0 25 0 1 0 161702957 7487488 864 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134710272 0 0 4096 0 0 0 0 17 0 0 0
/proc/1311/statm: 1828 864 713 92 0 172 0
Current children cumulated CPU time (s) 3.5
Current children cumulated vsize (KiB) 7312

[startup+12.7281 s]
/proc/loadavg: 4.21 3.58 3.15 3/81 1316
/proc/meminfo: memFree=15256/2055920 swapFree=4192812/4192956
[pid=1311] ppid=1309 vsize=7312 CPUtime=9.96
/proc/1311/stat : 1311 (solver) R 1309 1311 32610 0 -1 4194304 865 0 31 0 993 3 0 0 25 0 1 0 161702957 7487488 864 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134710643 0 0 4096 0 0 0 0 17 0 0 0
/proc/1311/statm: 1828 864 713 92 0 172 0
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (KiB) 7312

[startup+25.5636 s]
/proc/loadavg: 4.10 3.58 3.15 3/81 1319
/proc/meminfo: memFree=15064/2055920 swapFree=4192812/4192956
[pid=1311] ppid=1309 vsize=7312 CPUtime=22.66
/proc/1311/stat : 1311 (solver) R 1309 1311 32610 0 -1 4194304 865 0 31 0 2257 9 0 0 25 0 1 0 161702957 7487488 864 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134711760 0 0 4096 0 0 0 0 17 0 0 0
/proc/1311/statm: 1828 864 713 92 0 172 0
Current children cumulated CPU time (s) 22.66
Current children cumulated vsize (KiB) 7312

[startup+51.2026 s]
/proc/loadavg: 3.39 3.45 3.12 2/74 1324
/proc/meminfo: memFree=1919576/2055920 swapFree=4192812/4192956
[pid=1311] ppid=1309 vsize=7312 CPUtime=48.11
/proc/1311/stat : 1311 (solver) R 1309 1311 32610 0 -1 4194304 865 0 31 0 4799 12 0 0 25 0 1 0 161702957 7487488 864 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134712049 0 0 4096 0 0 0 0 17 0 0 0
/proc/1311/statm: 1828 864 713 92 0 172 0
Current children cumulated CPU time (s) 48.11
Current children cumulated vsize (KiB) 7312

[startup+102.469 s]
/proc/loadavg: 2.80 3.28 3.08 3/74 1387
/proc/meminfo: memFree=1871512/2055920 swapFree=4192812/4192956
[pid=1311] ppid=1309 vsize=7320 CPUtime=99.17
/proc/1311/stat : 1311 (solver) R 1309 1311 32610 0 -1 4194304 867 0 31 0 9900 17 0 0 25 0 1 0 161702957 7495680 866 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134710643 0 0 4096 0 0 0 0 17 0 0 0
/proc/1311/statm: 1830 866 713 92 0 174 0
Current children cumulated CPU time (s) 99.17
Current children cumulated vsize (KiB) 7320

[startup+162.495 s]
/proc/loadavg: 2.29 3.04 3.01 3/74 1387
/proc/meminfo: memFree=1856600/2055920 swapFree=4192812/4192956
[pid=1311] ppid=1309 vsize=7328 CPUtime=159.14
/proc/1311/stat : 1311 (solver) R 1309 1311 32610 0 -1 4194304 869 0 31 0 15897 17 0 0 25 0 1 0 161702957 7503872 868 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134637236 0 0 4096 0 0 0 0 17 0 0 0
/proc/1311/statm: 1832 868 713 92 0 176 0
Current children cumulated CPU time (s) 159.14
Current children cumulated vsize (KiB) 7328

Child status: 0
Real time (s): 209.955
CPU time (s): 206.566
CPU user time (s): 206.386
CPU system time (s): 0.179972
CPU usage (%): 98.3856
Max. virtual memory (cumulated for all children) (KiB): 18540

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 206.386
system time used= 0.179972
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 886
page faults= 31
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 58
involuntary context switches= 2377

runsolver used 0.238963 s user time and 0.596909 s system time

The end

Launcher Data (download as text)

Begin job on node38 on Sun Jan  7 01:23:53 UTC 2007


IDJOB= 199221
IDBENCH= 3600
FILE ID= node38/199221-1168133025

PBS_JOBID= 3477913

Free space on /tmp= 35594 MiB

BENCH NAME= HOME/pub/bench/CPAI06/knights/knights-25-9.xml
COMMAND LINE= /tmp/evaluation/199221-1168133025/mistral/bin/solver /tmp/evaluation/199221-1168133025/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node38/watcher-199221-1168133025 -o ROOT/results/node38/solver-199221-1168133025 -C 1800 -M 900  /tmp/evaluation/199221-1168133025/mistral/bin/solver /tmp/evaluation/199221-1168133025/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  ff6db571c9963ef273115b40e7595a31

RANDOM SEED= 361626615

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		: 3000.267
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		: 3000.267
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:        137784 kB
Buffers:          3688 kB
Cached:        1725892 kB
SwapCached:          0 kB
Active:         112804 kB
Inactive:      1701252 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        137784 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:          832444 kB
Writeback:           0 kB
Mapped:         101268 kB
Slab:            89216 kB
Committed_AS:  3594484 kB
PageTables:       2060 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= 66509 MiB



End job on node38 on Sun Jan  7 01:27:23 UTC 2007