Trace number 1553304

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
kw 2009-03-20UNSAT 41.5767 41.6044

General information on the benchmark

NameAPPLICATIONS/bitverif/
minxorminand/minxorminand032.cnf
MD5SUM49dda3faa6676166ee2ccb89f6cd8ca0
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark7.59684
Satisfiable
(Un)Satisfiability was proved
Number of variables10794
Number of clauses31997
Sum of the clauses size74657
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 221330
Number of clauses of size 310665
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.00	c kw (KillerWhale) version 0.6
0.00/0.00	c Copyright 2007-2009 Johan Alfredsson, Oepir
0.00/0.00	c johan@oepir.com
41.46/41.59	c 41.43 seconds
41.46/41.59	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1553304-1238713439/watcher-1553304-1238713439 -o /tmp/evaluation-result-1553304-1238713439/solver-1553304-1238713439 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/kw HOME/instance-1553304-1238713439.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.00 1.03 3/81 12049
/proc/meminfo: memFree=1136968/2055920 swapFree=4176448/4192956
[pid=12049] ppid=12047 vsize=5684 CPUtime=0
/proc/12049/stat : 12049 (kw) R 12047 12049 11943 0 -1 0 981 0 0 0 0 0 0 0 20 0 1 0 1144008186 5820416 965 1992294400 4194304 6412682 548682068864 18446744073709551615 5487243 0 0 4096 0 0 0 0 17 1 0 0
/proc/12049/statm: 1421 972 208 541 0 871 0

[startup+0.020863 s]
/proc/loadavg: 1.00 1.00 1.03 3/81 12049
/proc/meminfo: memFree=1136968/2055920 swapFree=4176448/4192956
[pid=12049] ppid=12047 vsize=9144 CPUtime=0.01
/proc/12049/stat : 12049 (kw) R 12047 12049 11943 0 -1 0 1832 0 0 0 1 0 0 0 20 0 1 0 1144008186 9363456 1816 1992294400 4194304 6412682 548682068864 18446744073709551615 5487243 0 0 4096 0 0 0 0 17 1 0 0
/proc/12049/statm: 2286 1816 219 541 0 1736 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 9144

[startup+0.102871 s]
/proc/loadavg: 1.00 1.00 1.03 3/81 12049
/proc/meminfo: memFree=1136968/2055920 swapFree=4176448/4192956
[pid=12049] ppid=12047 vsize=10396 CPUtime=0.09
/proc/12049/stat : 12049 (kw) R 12047 12049 11943 0 -1 0 2187 0 0 0 9 0 0 0 20 0 1 0 1144008186 10645504 2171 1992294400 4194304 6412682 548682068864 18446744073709551615 5487243 0 0 4096 0 0 0 0 17 1 0 0
/proc/12049/statm: 2599 2171 220 541 0 2049 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 10396

[startup+0.302893 s]
/proc/loadavg: 1.00 1.00 1.03 3/81 12049
/proc/meminfo: memFree=1136968/2055920 swapFree=4176448/4192956
[pid=12049] ppid=12047 vsize=15160 CPUtime=0.29
/proc/12049/stat : 12049 (kw) R 12047 12049 11943 0 -1 0 3456 0 0 0 28 1 0 0 22 0 1 0 1144008186 15523840 3376 1992294400 4194304 6412682 548682068864 18446744073709551615 5554256 0 0 4096 0 0 0 0 17 1 0 0
/proc/12049/statm: 3790 3376 247 541 0 3240 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 15160

[startup+0.702947 s]
/proc/loadavg: 1.00 1.00 1.03 3/81 12049
/proc/meminfo: memFree=1136968/2055920 swapFree=4176448/4192956
[pid=12049] ppid=12047 vsize=22496 CPUtime=0.69
/proc/12049/stat : 12049 (kw) R 12047 12049 11943 0 -1 0 5221 0 0 0 64 5 0 0 25 0 1 0 1144008186 23035904 5092 1992294400 4194304 6412682 548682068864 18446744073709551615 4261566 0 0 4096 0 0 0 0 17 1 0 0
/proc/12049/statm: 5624 5092 248 541 0 5074 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 22496

[startup+1.50103 s]
/proc/loadavg: 1.00 1.00 1.03 2/82 12050
/proc/meminfo: memFree=1109440/2055920 swapFree=4176448/4192956
[pid=12049] ppid=12047 vsize=36940 CPUtime=1.49
/proc/12049/stat : 12049 (kw) R 12047 12049 11943 0 -1 0 8412 0 0 0 139 10 0 0 25 0 1 0 1144008186 37826560 8283 1992294400 4194304 6412682 548682068864 18446744073709551615 5554256 0 0 4096 0 0 0 0 17 1 0 0
/proc/12049/statm: 9235 8283 248 541 0 8685 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 36940

[startup+3.10121 s]
/proc/loadavg: 1.00 1.00 1.03 2/82 12050
/proc/meminfo: memFree=1091776/2055920 swapFree=4176448/4192956
[pid=12049] ppid=12047 vsize=42588 CPUtime=3.09
/proc/12049/stat : 12049 (kw) R 12047 12049 11943 0 -1 0 10089 0 0 0 296 13 0 0 25 0 1 0 1144008186 43610112 9778 1992294400 4194304 6412682 548682068864 18446744073709551615 5550983 0 0 4096 0 0 0 0 17 1 0 0
/proc/12049/statm: 10647 9778 255 541 0 10097 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 42588

[startup+6.30156 s]
/proc/loadavg: 1.00 1.00 1.03 2/82 12050
/proc/meminfo: memFree=1091584/2055920 swapFree=4176448/4192956
[pid=12049] ppid=12047 vsize=42588 CPUtime=6.28
/proc/12049/stat : 12049 (kw) R 12047 12049 11943 0 -1 0 10117 0 0 0 611 17 0 0 25 0 1 0 1144008186 43610112 9806 1992294400 4194304 6412682 548682068864 18446744073709551615 4333147 0 0 4096 0 0 0 0 17 1 0 0
/proc/12049/statm: 10647 9806 255 541 0 10097 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 42588

[startup+12.7013 s]
/proc/loadavg: 1.00 1.00 1.03 2/82 12050
/proc/meminfo: memFree=1091456/2055920 swapFree=4176448/4192956
[pid=12049] ppid=12047 vsize=42588 CPUtime=12.68
/proc/12049/stat : 12049 (kw) R 12047 12049 11943 0 -1 0 10180 0 0 0 1247 21 0 0 25 0 1 0 1144008186 43610112 9869 1992294400 4194304 6412682 548682068864 18446744073709551615 5550983 0 0 4096 0 0 0 0 17 1 0 0
/proc/12049/statm: 10647 9869 258 541 0 10097 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 42588

[startup+25.5017 s]
/proc/loadavg: 1.00 1.00 1.03 2/82 12050
/proc/meminfo: memFree=1081536/2055920 swapFree=4176448/4192956
[pid=12049] ppid=12047 vsize=52168 CPUtime=25.47
/proc/12049/stat : 12049 (kw) R 12047 12049 11943 0 -1 0 12659 0 0 0 2519 28 0 0 25 0 1 0 1144008186 53420032 12348 1992294400 4194304 6412682 548682068864 18446744073709551615 4286819 0 0 4096 0 0 0 0 17 1 0 0
/proc/12049/statm: 13042 12348 258 541 0 12492 0
Current children cumulated CPU time (s) 25.47
Current children cumulated vsize (KiB) 52168

Solver just ended. Dumping a history of the last processes samples

[startup+31.9064 s]
/proc/loadavg: 1.00 1.00 1.03 2/82 12050
/proc/meminfo: memFree=1077696/2055920 swapFree=4176448/4192956
[pid=12049] ppid=12047 vsize=56316 CPUtime=31.87
/proc/12049/stat : 12049 (kw) R 12047 12049 11943 0 -1 0 13604 0 0 0 3156 31 0 0 25 0 1 0 1144008186 57667584 13293 1992294400 4194304 6412682 548682068864 18446744073709551615 4360846 0 0 4096 0 0 0 0 17 1 0 0
/proc/12049/statm: 14079 13293 258 541 0 13529 0
Current children cumulated CPU time (s) 31.87
Current children cumulated vsize (KiB) 56316

[startup+38.3011 s]
/proc/loadavg: 1.00 1.00 1.03 2/82 12050
/proc/meminfo: memFree=1076992/2055920 swapFree=4176448/4192956
[pid=12049] ppid=12047 vsize=57640 CPUtime=38.27
/proc/12049/stat : 12049 (kw) R 12047 12049 11943 0 -1 0 13877 0 0 0 3794 33 0 0 25 0 1 0 1144008186 59023360 13566 1992294400 4194304 6412682 548682068864 18446744073709551615 5550983 0 0 4096 0 0 0 0 17 1 0 0
/proc/12049/statm: 14410 13566 258 541 0 13860 0
Current children cumulated CPU time (s) 38.27
Current children cumulated vsize (KiB) 57640

[startup+39.9013 s]
/proc/loadavg: 1.00 1.00 1.03 2/82 12050
/proc/meminfo: memFree=1076032/2055920 swapFree=4176448/4192956
[pid=12049] ppid=12047 vsize=58600 CPUtime=39.86
/proc/12049/stat : 12049 (kw) R 12047 12049 11943 0 -1 0 14048 0 0 0 3953 33 0 0 25 0 1 0 1144008186 60006400 13737 1992294400 4194304 6412682 548682068864 18446744073709551615 4286819 0 0 4096 0 0 0 0 17 1 0 0
/proc/12049/statm: 14650 13737 258 541 0 14100 0
Current children cumulated CPU time (s) 39.86
Current children cumulated vsize (KiB) 58600

[startup+40.7064 s]
/proc/loadavg: 1.00 1.00 1.03 2/82 12050
/proc/meminfo: memFree=1075776/2055920 swapFree=4176448/4192956
[pid=12049] ppid=12047 vsize=58600 CPUtime=40.67
/proc/12049/stat : 12049 (kw) R 12047 12049 11943 0 -1 0 14166 0 0 0 4033 34 0 0 25 0 1 0 1144008186 60006400 13751 1992294400 4194304 6412682 548682068864 18446744073709551615 4286819 0 0 4096 0 0 0 0 17 1 0 0
/proc/12049/statm: 14650 13751 258 541 0 14100 0
Current children cumulated CPU time (s) 40.67
Current children cumulated vsize (KiB) 58600

[startup+41.1014 s]
/proc/loadavg: 1.00 1.00 1.03 2/82 12050
/proc/meminfo: memFree=1075776/2055920 swapFree=4176448/4192956
[pid=12049] ppid=12047 vsize=58760 CPUtime=41.06
/proc/12049/stat : 12049 (kw) R 12047 12049 11943 0 -1 0 14185 0 0 0 4072 34 0 0 25 0 1 0 1144008186 60170240 13770 1992294400 4194304 6412682 548682068864 18446744073709551615 5550983 0 0 4096 0 0 0 0 17 1 0 0
/proc/12049/statm: 14690 13770 258 541 0 14140 0
Current children cumulated CPU time (s) 41.06
Current children cumulated vsize (KiB) 58760

[startup+41.5015 s]
/proc/loadavg: 1.00 1.00 1.03 2/82 12050
/proc/meminfo: memFree=1075776/2055920 swapFree=4176448/4192956
[pid=12049] ppid=12047 vsize=58920 CPUtime=41.46
/proc/12049/stat : 12049 (kw) R 12047 12049 11943 0 -1 0 14210 0 0 0 4112 34 0 0 25 0 1 0 1144008186 60334080 13795 1992294400 4194304 6412682 548682068864 18446744073709551615 4304757 0 0 4096 0 0 0 0 17 1 0 0
/proc/12049/statm: 14730 13795 258 541 0 14180 0
Current children cumulated CPU time (s) 41.46
Current children cumulated vsize (KiB) 58920

[startup+41.6015 s]
/proc/loadavg: 1.00 1.00 1.03 2/82 12050
/proc/meminfo: memFree=1075776/2055920 swapFree=4176448/4192956
[pid=12049] ppid=12047 vsize=0 CPUtime=41.57
/proc/12049/stat : 12049 (kw) R 12047 12049 11943 0 -1 4 14217 0 0 0 4122 35 0 0 25 0 1 0 1144008186 0 0 1992294400 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/12049/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 41.57
Current children cumulated vsize (KiB) 0

Child status: 20
Real time (s): 41.6044
CPU time (s): 41.5767
CPU user time (s): 41.2227
CPU system time (s): 0.353946
CPU usage (%): 99.9335
Max. virtual memory (cumulated for all children) (KiB): 59016

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 41.2227
system time used= 0.353946
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 14217
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= 2
involuntary context switches= 121

runsolver used 0.053991 second user time and 0.144977 second system time

The end

Launcher Data 

Begin job on node86 at 2009-04-03 01:03:59
IDJOB=1553304
IDBENCH=70759
IDSOLVER=501
FILE ID=node86/1553304-1238713439
PBS_JOBID= 9085308
Free space on /tmp= 66488 MiB

SOLVER NAME= kw 2009-03-20
BENCH NAME= SAT09/APPLICATIONS/bitverif/minxorminand/minxorminand032.cnf
COMMAND LINE= HOME/kw BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1553304-1238713439/watcher-1553304-1238713439 -o /tmp/evaluation-result-1553304-1238713439/solver-1553304-1238713439 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/kw HOME/instance-1553304-1238713439.cnf

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 49dda3faa6676166ee2ccb89f6cd8ca0
RANDOM SEED=41752035

node86.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.238
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		: 3000.238
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1137384 kB
Buffers:         89984 kB
Cached:         721348 kB
SwapCached:       9020 kB
Active:         316208 kB
Inactive:       509328 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1137384 kB
SwapTotal:     4192956 kB
SwapFree:      4176448 kB
Dirty:            2696 kB
Writeback:           0 kB
Mapped:          19216 kB
Slab:            77220 kB
Committed_AS:  2829500 kB
PageTables:       2684 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= 66480 MiB
End job on node86 at 2009-04-03 01:04:41