Trace number 1725448

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 1.88571 1.8866

General information on the benchmark

Namecrafted/Medium/contest05/pebbling/
unsat-pbl-00080.sat05-1325.reshuffled-07.cnf
MD5SUM270191e44d7630b87c6baceebf140e40
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.203968
Satisfiable
(Un)Satisfiability was proved
Number of variables288
Number of clauses11604
Sum of the clauses size89223
Maximum clause length11
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 214
Number of clauses of size 373
Number of clauses of size 472
Number of clauses of size 5457
Number of clauses of size over 510986

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
1.79/1.88	c 1.8 seconds
1.79/1.88	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-1725448-1240704896/watcher-1725448-1240704896 -o /tmp/evaluation-result-1725448-1240704896/solver-1725448-1240704896 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/kw HOME/instance-1725448-1240704896.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: 0.92 0.98 0.99 2/65 3117
/proc/meminfo: memFree=1576392/2055920 swapFree=4192952/4192956
[pid=3117] ppid=3115 vsize=2920 CPUtime=0
/proc/3117/stat : 3117 (kw) R 3115 3117 2609 0 -1 0 333 0 0 0 0 0 0 0 20 0 1 0 98518609 2990080 317 1992294400 4194304 6412682 548682068832 18446744073709551615 5487243 0 0 4096 0 0 0 0 17 1 0 0
/proc/3117/statm: 730 317 221 541 0 180 0

[startup+0.0522221 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 3117
/proc/meminfo: memFree=1576392/2055920 swapFree=4192952/4192956
[pid=3117] ppid=3115 vsize=3452 CPUtime=0.04
/proc/3117/stat : 3117 (kw) R 3115 3117 2609 0 -1 0 504 0 0 0 4 0 0 0 20 0 1 0 98518609 3534848 488 1992294400 4194304 6412682 548682068832 18446744073709551615 5487243 0 0 4096 0 0 0 0 17 1 0 0
/proc/3117/statm: 863 488 221 541 0 313 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 3452

[startup+0.102228 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 3117
/proc/meminfo: memFree=1576392/2055920 swapFree=4192952/4192956
[pid=3117] ppid=3115 vsize=5052 CPUtime=0.09
/proc/3117/stat : 3117 (kw) R 3115 3117 2609 0 -1 0 915 0 0 0 9 0 0 0 20 0 1 0 98518609 5173248 899 1992294400 4194304 6412682 548682068832 18446744073709551615 4564594 0 0 4096 0 0 0 0 17 1 0 0
/proc/3117/statm: 1263 899 239 541 0 713 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5052

[startup+0.302249 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 3117
/proc/meminfo: memFree=1576392/2055920 swapFree=4192952/4192956
[pid=3117] ppid=3115 vsize=5236 CPUtime=0.29
/proc/3117/stat : 3117 (kw) R 3115 3117 2609 0 -1 0 938 0 0 0 29 0 0 0 22 0 1 0 98518609 5361664 922 1992294400 4194304 6412682 548682068832 18446744073709551615 4564952 0 0 4096 0 0 0 0 17 1 0 0
/proc/3117/statm: 1309 922 239 541 0 759 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 5236

[startup+0.701294 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 3117
/proc/meminfo: memFree=1576392/2055920 swapFree=4192952/4192956
[pid=3117] ppid=3115 vsize=6208 CPUtime=0.69
/proc/3117/stat : 3117 (kw) R 3115 3117 2609 0 -1 0 1175 0 0 0 69 0 0 0 25 0 1 0 98518609 6356992 1159 1992294400 4194304 6412682 548682068832 18446744073709551615 4264592 0 0 4096 0 0 0 0 17 1 0 0
/proc/3117/statm: 1552 1159 247 541 0 1002 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 6208

[startup+1.50138 s]
/proc/loadavg: 0.92 0.98 0.99 2/66 3118
/proc/meminfo: memFree=1572160/2055920 swapFree=4192952/4192956
[pid=3117] ppid=3115 vsize=8076 CPUtime=1.49
/proc/3117/stat : 3117 (kw) R 3115 3117 2609 0 -1 0 1641 0 0 0 147 2 0 0 25 0 1 0 98518609 8269824 1585 1992294400 4194304 6412682 548682068832 18446744073709551615 5550983 0 0 4096 0 0 0 0 17 1 0 0
/proc/3117/statm: 2019 1585 254 541 0 1469 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 8076

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

[startup+1.7014 s]
/proc/loadavg: 0.92 0.98 0.99 2/66 3118
/proc/meminfo: memFree=1572160/2055920 swapFree=4192952/4192956
[pid=3117] ppid=3115 vsize=8544 CPUtime=1.69
/proc/3117/stat : 3117 (kw) R 3115 3117 2609 0 -1 0 1753 0 0 0 166 3 0 0 25 0 1 0 98518609 8749056 1697 1992294400 4194304 6412682 548682068832 18446744073709551615 4286819 0 0 4096 0 0 0 0 17 1 0 0
/proc/3117/statm: 2136 1697 257 541 0 1586 0
Current children cumulated CPU time (s) 1.69
Current children cumulated vsize (KiB) 8544

[startup+1.80142 s]
/proc/loadavg: 0.92 0.98 0.99 2/66 3118
/proc/meminfo: memFree=1572160/2055920 swapFree=4192952/4192956
[pid=3117] ppid=3115 vsize=8708 CPUtime=1.79
/proc/3117/stat : 3117 (kw) R 3115 3117 2609 0 -1 0 1776 0 0 0 176 3 0 0 25 0 1 0 98518609 8916992 1720 1992294400 4194304 6412682 548682068832 18446744073709551615 4286819 0 0 4096 0 0 0 0 17 1 0 0
/proc/3117/statm: 2177 1720 257 541 0 1627 0
Current children cumulated CPU time (s) 1.79
Current children cumulated vsize (KiB) 8708

Child status: 20
Real time (s): 1.8866
CPU time (s): 1.88571
CPU user time (s): 1.85272
CPU system time (s): 0.032994
CPU usage (%): 99.953
Max. virtual memory (cumulated for all children) (KiB): 8708

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.85272
system time used= 0.032994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1831
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= 4

runsolver used 0.004999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node91 at 2009-04-26 02:14:56
IDJOB=1725448
IDBENCH=24586
IDSOLVER=501
FILE ID=node91/1725448-1240704896
PBS_JOBID= 9186742
Free space on /tmp= 66520 MiB

SOLVER NAME= kw 2009-03-20
BENCH NAME= SAT07/crafted/Medium/contest05/pebbling/unsat-pbl-00080.sat05-1325.reshuffled-07.cnf
COMMAND LINE= HOME/kw BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1725448-1240704896/watcher-1725448-1240704896 -o /tmp/evaluation-result-1725448-1240704896/solver-1725448-1240704896 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/kw HOME/instance-1725448-1240704896.cnf

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

MD5SUM BENCH= 270191e44d7630b87c6baceebf140e40
RANDOM SEED=1800033341

node91.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		: 3000.241
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		: 3000.241
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:       1576808 kB
Buffers:         55476 kB
Cached:         331100 kB
SwapCached:          4 kB
Active:          90852 kB
Inactive:       310340 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1576808 kB
SwapTotal:     4192956 kB
SwapFree:      4192952 kB
Dirty:            2620 kB
Writeback:           0 kB
Mapped:          24316 kB
Slab:            63752 kB
Committed_AS:   255208 kB
PageTables:       1356 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66520 MiB
End job on node91 at 2009-04-26 02:14:58