Trace number 200554

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
buggy_2_5 2007-01-08UNSAT 311.288 312.767

General information on the benchmark

NamequeensKnights/
queensKnights-100-5-add.xml
MD5SUM814dd4df9b9e9ae148440d277fd5ff15
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 benchmark311.288
SatisfiableNO
(Un)Satisfiability was proved
Number of variables105
Number of constraints4960
Maximum constraint arity2
Maximum domain size10000
Number of constraints which are defined in extension0
Number of constraints which are defined in intension4960
Global constraints used (with number of constraints)

Solver Data (download as text)

c 
c 
c 
c solution file
c 
c 

UNSAT

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/node4/watcher-200554-1168288513 -o ROOT/results/node4/solver-200554-1168288513 -C 1800 -M 900 /tmp/evaluation/200554-1168288513/solver /tmp/evaluation/200554-1168288513/unknown 1800 

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: 0.85 0.97 0.99 5/88 28527
/proc/meminfo: memFree=1410768/2055920 swapFree=4182144/4192956
[pid=28526] ppid=28524 vsize=5352 CPUtime=0
/proc/28526/stat : 28526 (solver) S 28524 28526 27134 0 -1 4194304 295 26 0 0 0 0 0 0 16 0 1 0 177247036 5480448 232 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 259913212740 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/28526/statm: 1338 232 194 169 0 49 0
[pid=28529] ppid=28526 vsize=196 CPUtime=0
/proc/28529/stat : 28529 (grep) R 28526 28526 27134 0 -1 4194304 41 0 0 0 0 0 0 0 23 0 1 0 177247037 200704 17 18446744073709551615 4194304 4274172 548682069552 18446744073709551615 259910551397 0 0 4096 0 0 0 0 17 1 0 0
/proc/28529/statm: 49 17 11 19 0 3 0

[startup+0.106947 s]
/proc/loadavg: 0.85 0.97 0.99 5/88 28527
/proc/meminfo: memFree=1410768/2055920 swapFree=4182144/4192956
[pid=28526] ppid=28524 vsize=5352 CPUtime=0.07
/proc/28526/stat : 28526 (solver) S 28524 28526 27134 0 -1 4194304 376 2316 0 0 0 0 5 2 16 0 1 0 177247036 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 259913212740 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/28526/statm: 1338 242 203 169 0 49 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 5352

[startup+0.514981 s]
/proc/loadavg: 0.85 0.97 0.99 5/88 28527
/proc/meminfo: memFree=1410768/2055920 swapFree=4182144/4192956
[pid=28526] ppid=28524 vsize=5352 CPUtime=0.07
/proc/28526/stat : 28526 (solver) S 28524 28526 27134 0 -1 4194304 376 2316 0 0 0 0 5 2 16 0 1 0 177247036 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 259913212740 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/28526/statm: 1338 242 203 169 0 49 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 5352

[startup+1.33606 s]
/proc/loadavg: 0.85 0.97 0.99 3/88 28546
/proc/meminfo: memFree=1331080/2055920 swapFree=4182144/4192956
[pid=28526] ppid=28524 vsize=5352 CPUtime=0.07
/proc/28526/stat : 28526 (solver) S 28524 28526 27134 0 -1 4194304 376 2316 0 0 0 0 5 2 16 0 1 0 177247036 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 259913212740 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/28526/statm: 1338 242 203 169 0 49 0
[pid=28546] ppid=28526 vsize=34028 CPUtime=1.22
/proc/28546/stat : 28546 (bordewijk) R 28526 28526 27134 0 -1 4194304 9602 0 0 0 78 44 0 0 19 0 1 0 177247047 34844672 7929 18446744073709551615 134512640 134912576 4294956768 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/28546/statm: 8507 7929 217 97 0 7788 0
Current children cumulated CPU time (s) 1.29
Current children cumulated vsize (KiB) 39380

[startup+2.98521 s]
/proc/loadavg: 0.94 0.98 0.99 3/88 28548
/proc/meminfo: memFree=1376520/2055920 swapFree=4182144/4192956
[pid=28526] ppid=28524 vsize=5352 CPUtime=1.87
/proc/28526/stat : 28526 (solver) S 28524 28526 27134 0 -1 4194304 396 11919 0 0 0 0 86 101 16 0 1 0 177247036 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 259913212740 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/28526/statm: 1338 242 203 169 0 49 0
[pid=28548] ppid=28526 vsize=14664 CPUtime=1.06
/proc/28548/stat : 28548 (standalone) R 28526 28526 27134 0 -1 4194304 3236 0 0 0 90 16 0 0 25 0 1 0 177247227 15015936 3025 18446744073709551615 134512640 134775488 4294956896 18446744073709551615 4150410779 0 0 4096 0 0 0 0 17 0 0 0
/proc/28548/statm: 3666 3025 137 64 0 2981 0
Current children cumulated CPU time (s) 2.93
Current children cumulated vsize (KiB) 20016

[startup+6.26753 s]
/proc/loadavg: 0.94 0.98 0.99 3/88 28548
/proc/meminfo: memFree=1376584/2055920 swapFree=4182144/4192956
[pid=28526] ppid=28524 vsize=5352 CPUtime=1.87
/proc/28526/stat : 28526 (solver) S 28524 28526 27134 0 -1 4194304 396 11919 0 0 0 0 86 101 16 0 1 0 177247036 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 259913212740 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/28526/statm: 1338 242 203 169 0 49 0
[pid=28548] ppid=28526 vsize=14664 CPUtime=4.33
/proc/28548/stat : 28548 (standalone) R 28526 28526 27134 0 -1 4194304 3236 0 0 0 417 16 0 0 25 0 1 0 177247227 15015936 3025 18446744073709551615 134512640 134775488 4294956896 18446744073709551615 4150410779 0 0 4096 0 0 0 0 17 0 0 0
/proc/28548/statm: 3666 3025 137 64 0 2981 0
Current children cumulated CPU time (s) 6.2
Current children cumulated vsize (KiB) 20016

[startup+12.7341 s]
/proc/loadavg: 1.10 1.02 1.01 3/88 28548
/proc/meminfo: memFree=1376592/2055920 swapFree=4182144/4192956
[pid=28526] ppid=28524 vsize=5352 CPUtime=1.87
/proc/28526/stat : 28526 (solver) S 28524 28526 27134 0 -1 4194304 396 11919 0 0 0 0 86 101 16 0 1 0 177247036 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 259913212740 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/28526/statm: 1338 242 203 169 0 49 0
[pid=28548] ppid=28526 vsize=14664 CPUtime=10.77
/proc/28548/stat : 28548 (standalone) R 28526 28526 27134 0 -1 4194304 3236 0 0 0 1061 16 0 0 25 0 1 0 177247227 15015936 3025 18446744073709551615 134512640 134775488 4294956896 18446744073709551615 4149913244 0 0 4096 0 0 0 0 17 0 0 0
/proc/28548/statm: 3666 3025 137 64 0 2981 0
Current children cumulated CPU time (s) 12.64
Current children cumulated vsize (KiB) 20016

[startup+25.5504 s]
/proc/loadavg: 1.24 1.05 1.02 3/88 28548
/proc/meminfo: memFree=1376848/2055920 swapFree=4182144/4192956
[pid=28526] ppid=28524 vsize=5352 CPUtime=1.87
/proc/28526/stat : 28526 (solver) S 28524 28526 27134 0 -1 4194304 396 11919 0 0 0 0 86 101 16 0 1 0 177247036 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 259913212740 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/28526/statm: 1338 242 203 169 0 49 0
[pid=28548] ppid=28526 vsize=14664 CPUtime=23.52
/proc/28548/stat : 28548 (standalone) R 28526 28526 27134 0 -1 4194304 3236 0 0 0 2336 16 0 0 25 0 1 0 177247227 15015936 3025 18446744073709551615 134512640 134775488 4294956896 18446744073709551615 4150410779 0 0 4096 0 0 0 0 17 0 0 0
/proc/28548/statm: 3666 3025 137 64 0 2981 0
Current children cumulated CPU time (s) 25.39
Current children cumulated vsize (KiB) 20016

[startup+51.1998 s]
/proc/loadavg: 1.50 1.12 1.04 3/88 28548
/proc/meminfo: memFree=1377104/2055920 swapFree=4182144/4192956
[pid=28526] ppid=28524 vsize=5352 CPUtime=1.87
/proc/28526/stat : 28526 (solver) S 28524 28526 27134 0 -1 4194304 396 11919 0 0 0 0 86 101 16 0 1 0 177247036 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 259913212740 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/28526/statm: 1338 242 203 169 0 49 0
[pid=28548] ppid=28526 vsize=14664 CPUtime=49.05
/proc/28548/stat : 28548 (standalone) R 28526 28526 27134 0 -1 4194304 3236 0 0 0 4889 16 0 0 25 0 1 0 177247227 15015936 3025 18446744073709551615 134512640 134775488 4294956896 18446744073709551615 4150410779 0 0 4096 0 0 0 0 17 0 0 0
/proc/28548/statm: 3666 3025 137 64 0 2981 0
Current children cumulated CPU time (s) 50.92
Current children cumulated vsize (KiB) 20016

[startup+102.491 s]
/proc/loadavg: 1.78 1.26 1.09 3/88 28548
/proc/meminfo: memFree=1377168/2055920 swapFree=4182144/4192956
[pid=28526] ppid=28524 vsize=5352 CPUtime=1.87
/proc/28526/stat : 28526 (solver) S 28524 28526 27134 0 -1 4194304 396 11919 0 0 0 0 86 101 16 0 1 0 177247036 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 259913212740 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/28526/statm: 1338 242 203 169 0 49 0
[pid=28548] ppid=28526 vsize=14664 CPUtime=100.11
/proc/28548/stat : 28548 (standalone) R 28526 28526 27134 0 -1 4194304 3279 0 0 0 9995 16 0 0 25 0 1 0 177247227 15015936 3068 18446744073709551615 134512640 134775488 4294956896 18446744073709551615 4149913613 0 0 4096 0 0 0 0 17 0 0 0
/proc/28548/statm: 3666 3068 138 64 0 2981 0
Current children cumulated CPU time (s) 101.98
Current children cumulated vsize (KiB) 20016

[startup+162.5 s]
/proc/loadavg: 1.92 1.40 1.15 3/88 28548
/proc/meminfo: memFree=1377168/2055920 swapFree=4182144/4192956
[pid=28526] ppid=28524 vsize=5352 CPUtime=1.87
/proc/28526/stat : 28526 (solver) S 28524 28526 27134 0 -1 4194304 396 11919 0 0 0 0 86 101 16 0 1 0 177247036 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 259913212740 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/28526/statm: 1338 242 203 169 0 49 0
[pid=28548] ppid=28526 vsize=14664 CPUtime=159.83
/proc/28548/stat : 28548 (standalone) R 28526 28526 27134 0 -1 4194304 3282 0 0 0 15967 16 0 0 25 0 1 0 177247227 15015936 3071 18446744073709551615 134512640 134775488 4294956896 18446744073709551615 4150410779 0 0 4096 0 0 0 0 17 0 0 0
/proc/28548/statm: 3666 3071 138 64 0 2981 0
Current children cumulated CPU time (s) 161.7
Current children cumulated vsize (KiB) 20016

[startup+222.516 s]
/proc/loadavg: 1.97 1.51 1.20 4/88 28548
/proc/meminfo: memFree=1377168/2055920 swapFree=4182144/4192956
[pid=28526] ppid=28524 vsize=5352 CPUtime=1.87
/proc/28526/stat : 28526 (solver) S 28524 28526 27134 0 -1 4194304 396 11919 0 0 0 0 86 101 16 0 1 0 177247036 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 259913212740 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/28526/statm: 1338 242 203 169 0 49 0
[pid=28548] ppid=28526 vsize=14664 CPUtime=219.57
/proc/28548/stat : 28548 (standalone) R 28526 28526 27134 0 -1 4194304 3284 0 0 0 21941 16 0 0 25 0 1 0 177247227 15015936 3073 18446744073709551615 134512640 134775488 4294956896 18446744073709551615 4150410779 0 0 4096 0 0 0 0 17 0 0 0
/proc/28548/statm: 3666 3073 138 64 0 2981 0
Current children cumulated CPU time (s) 221.44
Current children cumulated vsize (KiB) 20016

[startup+282.526 s]
/proc/loadavg: 1.99 1.59 1.24 3/88 28548
/proc/meminfo: memFree=1377168/2055920 swapFree=4182144/4192956
[pid=28526] ppid=28524 vsize=5352 CPUtime=1.87
/proc/28526/stat : 28526 (solver) S 28524 28526 27134 0 -1 4194304 396 11919 0 0 0 0 86 101 16 0 1 0 177247036 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 259913212740 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/28526/statm: 1338 242 203 169 0 49 0
[pid=28548] ppid=28526 vsize=14664 CPUtime=279.31
/proc/28548/stat : 28548 (standalone) R 28526 28526 27134 0 -1 4194304 3286 0 0 0 27915 16 0 0 25 0 1 0 177247227 15015936 3075 18446744073709551615 134512640 134775488 4294956896 18446744073709551615 4150410779 0 0 4096 0 0 0 0 17 0 0 0
/proc/28548/statm: 3666 3075 138 64 0 2981 0
Current children cumulated CPU time (s) 281.18
Current children cumulated vsize (KiB) 20016

Child status: 0
Real time (s): 312.767
CPU time (s): 311.288
CPU user time (s): 310.093
CPU system time (s): 1.19482
CPU usage (%): 99.5269
Max. virtual memory (cumulated for all children) (KiB): 39380

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 310.093
system time used= 1.19482
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15620
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= 161
involuntary context switches= 4769

runsolver used 0.348946 s user time and 0.910861 s system time

The end

Launcher Data (download as text)

Begin job on node4 on Mon Jan  8 20:35:15 UTC 2007


IDJOB= 200554
IDBENCH= 3714
FILE ID= node4/200554-1168288513

PBS_JOBID= 3501727

Free space on /tmp= 66294 MiB

BENCH NAME= HOME/pub/bench/CPAI06/queensKnights/queensKnights-100-5-add.xml
COMMAND LINE= /tmp/evaluation/200554-1168288513/solver /tmp/evaluation/200554-1168288513/unknown 1800
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node4/watcher-200554-1168288513 -o ROOT/results/node4/solver-200554-1168288513 -C 1800 -M 900  /tmp/evaluation/200554-1168288513/solver /tmp/evaluation/200554-1168288513/unknown 1800

META MD5SUM SOLVER= 6c84d9851726bfff2e2bc2bb5530c705
MD5SUM BENCH=  814dd4df9b9e9ae148440d277fd5ff15

RANDOM SEED= 244631986

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		: 3000.223
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		: 3000.223
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:       1411760 kB
Buffers:         79780 kB
Cached:         460104 kB
SwapCached:       2552 kB
Active:         343920 kB
Inactive:       238548 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1411760 kB
SwapTotal:     4192956 kB
SwapFree:      4182144 kB
Dirty:           22040 kB
Writeback:           0 kB
Mapped:          52512 kB
Slab:            46424 kB
Committed_AS:  5147320 kB
PageTables:       2392 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= 66283 MiB



End job on node4 on Mon Jan  8 20:40:28 UTC 2007