Trace number 199056

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
VALCSP 3.0? (MO) 432.365 434.399

General information on the benchmark

Nameknights/
knights-50-25.xml
MD5SUM351eb8249ace9020252e64f45fb53259
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 benchmark84.8321
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables25
Number of constraints300
Maximum constraint arity2
Maximum domain size2500
Number of constraints which are defined in extension0
Number of constraints which are defined in intension300
Global constraints used (with number of constraints)

Solver Data (download as text)



Verifier Data (download as text)




ERROR: Unexpected answer ! (SAT/UNSAT expected)
Got answer: 



Watcher Data (download as text)




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

command line: runsolver --timestamp -w ROOT/results/node48/watcher-199056-1168132305 -o ROOT/results/node48/solver-199056-1168132305 -C 1800 -M 900 /tmp/evaluation/199056-1168132305/VALCSP /tmp/evaluation/199056-1168132305/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: 2.02 1.43 1.16 5/74 15129
/proc/meminfo: memFree=1195784/2055920 swapFree=4192812/4192956
[pid=15128] ppid=15126 vsize=18540 CPUtime=0
/proc/15128/stat : 15128 (runsolver) R 15126 15128 14896 0 -1 4194368 16 0 0 0 0 0 0 0 20 0 1 0 161629210 18984960 279 18446744073709551615 4194304 4267372 548682069088 18446744073709551615 255539604775 0 0 4096 24578 0 0 0 17 1 0 0
/proc/15128/statm: 4635 279 244 17 0 2626 0

[startup+0.132934 s]
/proc/loadavg: 2.02 1.43 1.16 5/74 15129
/proc/meminfo: memFree=1195784/2055920 swapFree=4192812/4192956
[pid=15128] ppid=15126 vsize=27060 CPUtime=0.11
/proc/15128/stat : 15128 (VALCSP) R 15126 15128 14896 0 -1 4194304 6524 0 0 0 8 3 0 0 20 0 1 0 161629210 27709440 6502 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/15128/statm: 6765 6502 64 8 0 6437 0
Current children cumulated CPU time (s) 0.11
Current children cumulated vsize (KiB) 27060

[startup+0.541959 s]
/proc/loadavg: 2.02 1.43 1.16 5/74 15129
/proc/meminfo: memFree=1195784/2055920 swapFree=4192812/4192956
[pid=15128] ppid=15126 vsize=27060 CPUtime=0.52
/proc/15128/stat : 15128 (VALCSP) R 15126 15128 14896 0 -1 4194304 6524 0 0 0 49 3 0 0 24 0 1 0 161629210 27709440 6502 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/15128/statm: 6765 6502 64 8 0 6437 0
Current children cumulated CPU time (s) 0.52
Current children cumulated vsize (KiB) 27060

[startup+1.36303 s]
/proc/loadavg: 2.02 1.43 1.16 3/74 15129
/proc/meminfo: memFree=1169928/2055920 swapFree=4192812/4192956
[pid=15128] ppid=15126 vsize=27060 CPUtime=1.34
/proc/15128/stat : 15128 (VALCSP) R 15126 15128 14896 0 -1 4194304 6524 0 0 0 131 3 0 0 25 0 1 0 161629210 27709440 6502 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/15128/statm: 6765 6502 64 8 0 6437 0
Current children cumulated CPU time (s) 1.34
Current children cumulated vsize (KiB) 27060

[startup+3.00518 s]
/proc/loadavg: 2.02 1.44 1.16 3/74 15129
/proc/meminfo: memFree=1169928/2055920 swapFree=4192812/4192956
[pid=15128] ppid=15126 vsize=27060 CPUtime=2.98
/proc/15128/stat : 15128 (VALCSP) R 15126 15128 14896 0 -1 4194304 6524 0 0 0 295 3 0 0 25 0 1 0 161629210 27709440 6502 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/15128/statm: 6765 6502 64 8 0 6437 0
Current children cumulated CPU time (s) 2.98
Current children cumulated vsize (KiB) 27060

[startup+6.28448 s]
/proc/loadavg: 2.02 1.44 1.16 3/74 15129
/proc/meminfo: memFree=1169928/2055920 swapFree=4192812/4192956
[pid=15128] ppid=15126 vsize=27060 CPUtime=6.24
/proc/15128/stat : 15128 (VALCSP) R 15126 15128 14896 0 -1 4194304 6524 0 0 0 621 3 0 0 25 0 1 0 161629210 27709440 6502 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/15128/statm: 6765 6502 64 8 0 6437 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 27060

[startup+12.7471 s]
/proc/loadavg: 2.01 1.45 1.17 3/74 15129
/proc/meminfo: memFree=1145480/2055920 swapFree=4192812/4192956
[pid=15128] ppid=15126 vsize=51552 CPUtime=12.67
/proc/15128/stat : 15128 (VALCSP) R 15126 15128 14896 0 -1 4194304 12635 0 0 0 1260 7 0 0 25 0 1 0 161629210 52789248 12613 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/15128/statm: 12888 12613 64 8 0 12560 0
Current children cumulated CPU time (s) 12.67
Current children cumulated vsize (KiB) 51552

[startup+25.5583 s]
/proc/loadavg: 2.01 1.47 1.18 3/74 15129
/proc/meminfo: memFree=1120968/2055920 swapFree=4192812/4192956
[pid=15128] ppid=15126 vsize=76048 CPUtime=25.42
/proc/15128/stat : 15128 (VALCSP) R 15126 15128 14896 0 -1 4194304 18746 0 0 0 2532 10 0 0 25 0 1 0 161629210 77873152 18724 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 1 0 0
/proc/15128/statm: 19012 18724 64 8 0 18684 0
Current children cumulated CPU time (s) 25.42
Current children cumulated vsize (KiB) 76048

[startup+51.1956 s]
/proc/loadavg: 2.01 1.51 1.20 3/74 15129
/proc/meminfo: memFree=1071944/2055920 swapFree=4192812/4192956
[pid=15128] ppid=15126 vsize=124896 CPUtime=50.94
/proc/15128/stat : 15128 (VALCSP) R 15126 15128 14896 0 -1 4194304 30968 0 0 0 5076 18 0 0 25 0 1 0 161629210 127893504 30946 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 1 0 0
/proc/15128/statm: 31224 30946 64 8 0 30896 0
Current children cumulated CPU time (s) 50.94
Current children cumulated vsize (KiB) 124896

[startup+102.46 s]
/proc/loadavg: 2.00 1.59 1.24 3/74 15129
/proc/meminfo: memFree=973960/2055920 swapFree=4192812/4192956
[pid=15128] ppid=15126 vsize=222592 CPUtime=101.96
/proc/15128/stat : 15128 (VALCSP) R 15126 15128 14896 0 -1 4194304 55412 0 0 0 10164 32 0 0 25 0 1 0 161629210 227934208 55390 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/15128/statm: 55648 55390 64 8 0 55320 0
Current children cumulated CPU time (s) 101.96
Current children cumulated vsize (KiB) 222592

[startup+162.548 s]
/proc/loadavg: 2.00 1.66 1.29 3/74 15129
/proc/meminfo: memFree=851472/2055920 swapFree=4192812/4192956
[pid=15128] ppid=15126 vsize=344920 CPUtime=161.77
/proc/15128/stat : 15128 (VALCSP) R 15126 15128 14896 0 -1 4194304 85967 0 0 0 16126 51 0 0 25 0 1 0 161629210 353198080 85945 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/15128/statm: 86230 85945 64 8 0 85902 0
Current children cumulated CPU time (s) 161.77
Current children cumulated vsize (KiB) 344920

[startup+222.627 s]
/proc/loadavg: 2.00 1.72 1.33 3/74 15129
/proc/meminfo: memFree=728976/2055920 swapFree=4192812/4192956
[pid=15128] ppid=15126 vsize=467112 CPUtime=221.58
/proc/15128/stat : 15128 (VALCSP) R 15126 15128 14896 0 -1 4194304 116522 0 0 0 22088 70 0 0 25 0 1 0 161629210 478322688 116500 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/15128/statm: 116778 116500 64 8 0 116450 0
Current children cumulated CPU time (s) 221.58
Current children cumulated vsize (KiB) 467112

[startup+282.709 s]
/proc/loadavg: 2.00 1.77 1.37 3/74 15129
/proc/meminfo: memFree=581968/2055920 swapFree=4192812/4192956
[pid=15128] ppid=15126 vsize=613796 CPUtime=281.38
/proc/15128/stat : 15128 (VALCSP) R 15126 15128 14896 0 -1 4194304 153189 0 0 0 28047 91 0 0 25 0 1 0 161629210 628527104 153167 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/15128/statm: 153449 153167 64 8 0 153121 0
Current children cumulated CPU time (s) 281.38
Current children cumulated vsize (KiB) 613796

[startup+342.785 s]
/proc/loadavg: 2.00 1.81 1.40 3/74 15129
/proc/meminfo: memFree=459408/2055920 swapFree=4192812/4192956
[pid=15128] ppid=15126 vsize=735988 CPUtime=341.18
/proc/15128/stat : 15128 (VALCSP) R 15126 15128 14896 0 -1 4194304 183744 0 0 0 34009 109 0 0 25 0 1 0 161629210 753651712 183722 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/15128/statm: 183997 183722 64 8 0 183669 0
Current children cumulated CPU time (s) 341.18
Current children cumulated vsize (KiB) 735988

[startup+402.872 s]
/proc/loadavg: 2.00 1.84 1.44 3/74 15131
/proc/meminfo: memFree=336528/2055920 swapFree=4192812/4192956
[pid=15128] ppid=15126 vsize=858176 CPUtime=400.99
/proc/15128/stat : 15128 (VALCSP) R 15126 15128 14896 0 -1 4194304 214299 0 0 0 39971 128 0 0 25 0 1 0 161629210 878772224 214277 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/15128/statm: 214544 214277 64 8 0 214216 0
Current children cumulated CPU time (s) 400.99
Current children cumulated vsize (KiB) 858176



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+434.243 s]
/proc/loadavg: 2.00 1.85 1.46 3/74 15131
/proc/meminfo: memFree=263056/2055920 swapFree=4192812/4192956
[pid=15128] ppid=15126 vsize=931520 CPUtime=432.21
/proc/15128/stat : 15128 (VALCSP) R 15126 15128 14896 0 -1 4194304 232632 0 0 0 43083 138 0 0 25 0 1 0 161629210 953876480 232610 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/15128/statm: 232880 232610 64 8 0 232552 0
Current children cumulated CPU time (s) 432.21
Current children cumulated vsize (KiB) 931520

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

Child ended because it received signal 15 (SIGTERM)
Real time (s): 434.399
CPU time (s): 432.365
CPU user time (s): 430.834
CPU system time (s): 1.53177
CPU usage (%): 99.5317
Max. virtual memory (cumulated for all children) (KiB): 931520

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 430.834
system time used= 1.53177
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 232632
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= 6
involuntary context switches= 5244

runsolver used 0.602908 s user time and 1.3178 s system time

The end



Launcher Data (download as text)




Begin job on node48 on Sun Jan  7 01:11:45 UTC 2007


IDJOB= 199056
IDBENCH= 3590
FILE ID= node48/199056-1168132305

PBS_JOBID= 3477981

Free space on /tmp= 66522 MiB

BENCH NAME= HOME/pub/bench/CPAI06/knights/knights-50-25.xml
COMMAND LINE= /tmp/evaluation/199056-1168132305/VALCSP /tmp/evaluation/199056-1168132305/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node48/watcher-199056-1168132305 -o ROOT/results/node48/solver-199056-1168132305 -C 1800 -M 900  /tmp/evaluation/199056-1168132305/VALCSP /tmp/evaluation/199056-1168132305/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  351eb8249ace9020252e64f45fb53259

RANDOM SEED= 438776108

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		: 3000.218
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		: 3000.218
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:       1196264 kB
Buffers:         47692 kB
Cached:         608168 kB
SwapCached:          0 kB
Active:         340964 kB
Inactive:       445388 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1196264 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:              88 kB
Writeback:           0 kB
Mapped:         141556 kB
Slab:            58524 kB
Committed_AS:  3482508 kB
PageTables:       1980 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= 66522 MiB



End job on node48 on Sun Jan  7 01:19:01 UTC 2007