Trace number 1805732

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_pre 2009-03-21UNSAT 3.55246 3.55551

General information on the benchmark

Namecrafted/Medium/contest05/pebbling/
unsat-pbl-00090.sat05-1326.reshuffled-07.cnf
MD5SUMfc73c241ff6e8e1a49a6ff2500eb7905
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.259959
Satisfiable
(Un)Satisfiability was proved
Number of variables322
Number of clauses9322
Sum of the clauses size72335
Maximum clause length11
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 211
Number of clauses of size 379
Number of clauses of size 4136
Number of clauses of size 5421
Number of clauses of size over 58674

Solver Data 

3.49/3.55	This is MiniSat 2.0 beta
3.49/3.55	WARNING: for repeatability, setting FPU to use double precision
3.49/3.55	============================[ Problem Statistics ]=============================
3.49/3.55	|                                                                             |
3.49/3.55	|  Number of variables:  1                                                    |
3.49/3.55	|  Number of clauses:    2                                                    |
3.49/3.55	|  Parsing time:         0.00         s                                       |
3.49/3.55	Solved by unit propagation
3.49/3.55	UNSATISFIABLE
3.49/3.55	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-1805732-1242142208/watcher-1805732-1242142208 -o /tmp/evaluation-result-1805732-1242142208/solver-1805732-1242142208 -C 1200 -W 1800 -M 1800 HOME/kw_pre HOME/instance-1805732-1242142208.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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.00 0.14 0.70 2/64 20259
/proc/meminfo: memFree=873360/2055920 swapFree=4181940/4192956
[pid=20259] ppid=20257 vsize=5356 CPUtime=0
/proc/20259/stat : 20259 (kw_pre) S 20257 20259 20222 0 -1 4194304 280 0 0 0 0 0 0 0 18 0 1 0 242248099 5484544 231 1992294400 4194304 4889804 548682068832 18446744073709551615 226238194500 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/20259/statm: 1339 231 192 169 0 50 0
[pid=20260] ppid=20259 vsize=2876 CPUtime=0
/proc/20260/stat : 20260 (kw_preprocessor) R 20259 20259 20222 0 -1 0 332 0 0 0 0 0 0 0 18 0 1 0 242248099 2945024 308 1992294400 4194304 6416590 548682068912 18446744073709551615 5489867 0 0 4096 0 0 0 0 17 1 0 0
/proc/20260/statm: 719 308 215 542 0 168 0

[startup+0.0512941 s]
/proc/loadavg: 0.00 0.14 0.70 2/64 20259
/proc/meminfo: memFree=873360/2055920 swapFree=4181940/4192956
[pid=20259] ppid=20257 vsize=5356 CPUtime=0
/proc/20259/stat : 20259 (kw_pre) S 20257 20259 20222 0 -1 4194304 280 0 0 0 0 0 0 0 18 0 1 0 242248099 5484544 231 1992294400 4194304 4889804 548682068832 18446744073709551615 226238194500 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/20259/statm: 1339 231 192 169 0 50 0
[pid=20260] ppid=20259 vsize=3408 CPUtime=0.04
/proc/20260/stat : 20260 (kw_preprocessor) R 20259 20259 20222 0 -1 0 482 0 0 0 4 0 0 0 18 0 1 0 242248099 3489792 458 1992294400 4194304 6416590 548682068912 18446744073709551615 5489867 0 0 4096 0 0 0 0 17 1 0 0
/proc/20260/statm: 852 458 217 542 0 301 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 8764

[startup+0.101299 s]
/proc/loadavg: 0.00 0.14 0.70 2/64 20259
/proc/meminfo: memFree=873360/2055920 swapFree=4181940/4192956
[pid=20259] ppid=20257 vsize=5356 CPUtime=0
/proc/20259/stat : 20259 (kw_pre) S 20257 20259 20222 0 -1 4194304 280 0 0 0 0 0 0 0 18 0 1 0 242248099 5484544 231 1992294400 4194304 4889804 548682068832 18446744073709551615 226238194500 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/20259/statm: 1339 231 192 169 0 50 0
[pid=20260] ppid=20259 vsize=4728 CPUtime=0.09
/proc/20260/stat : 20260 (kw_preprocessor) R 20259 20259 20222 0 -1 0 824 0 0 0 9 0 0 0 18 0 1 0 242248099 4841472 800 1992294400 4194304 6416590 548682068912 18446744073709551615 4567550 0 0 4096 0 0 0 0 17 1 0 0
/proc/20260/statm: 1182 800 233 542 0 631 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 10084

[startup+0.301315 s]
/proc/loadavg: 0.00 0.14 0.70 2/64 20259
/proc/meminfo: memFree=873360/2055920 swapFree=4181940/4192956
[pid=20259] ppid=20257 vsize=5356 CPUtime=0
/proc/20259/stat : 20259 (kw_pre) S 20257 20259 20222 0 -1 4194304 280 0 0 0 0 0 0 0 18 0 1 0 242248099 5484544 231 1992294400 4194304 4889804 548682068832 18446744073709551615 226238194500 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/20259/statm: 1339 231 192 169 0 50 0
[pid=20260] ppid=20259 vsize=5968 CPUtime=0.29
/proc/20260/stat : 20260 (kw_preprocessor) R 20259 20259 20222 0 -1 0 1135 0 0 0 29 0 0 0 19 0 1 0 242248099 6111232 1111 1992294400 4194304 6416590 548682068912 18446744073709551615 4511340 0 0 4096 0 0 0 0 17 1 0 0
/proc/20260/statm: 1492 1111 242 542 0 941 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 11324

[startup+0.701349 s]
/proc/loadavg: 0.00 0.14 0.70 2/64 20259
/proc/meminfo: memFree=873360/2055920 swapFree=4181940/4192956
[pid=20259] ppid=20257 vsize=5356 CPUtime=0
/proc/20259/stat : 20259 (kw_pre) S 20257 20259 20222 0 -1 4194304 280 0 0 0 0 0 0 0 18 0 1 0 242248099 5484544 231 1992294400 4194304 4889804 548682068832 18446744073709551615 226238194500 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/20259/statm: 1339 231 192 169 0 50 0
[pid=20260] ppid=20259 vsize=6680 CPUtime=0.69
/proc/20260/stat : 20260 (kw_preprocessor) R 20259 20259 20222 0 -1 0 1265 0 0 0 69 0 0 0 23 0 1 0 242248099 6840320 1241 1992294400 4194304 6416590 548682068912 18446744073709551615 4567303 0 0 4096 0 0 0 0 17 1 0 0
/proc/20260/statm: 1670 1241 242 542 0 1119 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 12036

[startup+1.50142 s]
/proc/loadavg: 0.00 0.14 0.70 2/66 20261
/proc/meminfo: memFree=868736/2055920 swapFree=4181940/4192956
[pid=20259] ppid=20257 vsize=5356 CPUtime=0
/proc/20259/stat : 20259 (kw_pre) S 20257 20259 20222 0 -1 4194304 280 0 0 0 0 0 0 0 18 0 1 0 242248099 5484544 231 1992294400 4194304 4889804 548682068832 18446744073709551615 226238194500 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/20259/statm: 1339 231 192 169 0 50 0
[pid=20260] ppid=20259 vsize=8796 CPUtime=1.49
/proc/20260/stat : 20260 (kw_preprocessor) R 20259 20259 20222 0 -1 0 1817 0 0 0 147 2 0 0 25 0 1 0 242248099 9007104 1772 1992294400 4194304 6416590 548682068912 18446744073709551615 4577368 0 0 4096 0 0 0 0 17 1 0 0
/proc/20260/statm: 2199 1772 254 542 0 1648 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 14152

[startup+3.10156 s]
/proc/loadavg: 0.00 0.14 0.70 2/66 20261
/proc/meminfo: memFree=865664/2055920 swapFree=4181940/4192956
[pid=20259] ppid=20257 vsize=5356 CPUtime=0
/proc/20259/stat : 20259 (kw_pre) S 20257 20259 20222 0 -1 4194304 280 0 0 0 0 0 0 0 18 0 1 0 242248099 5484544 231 1992294400 4194304 4889804 548682068832 18446744073709551615 226238194500 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/20259/statm: 1339 231 192 169 0 50 0
[pid=20260] ppid=20259 vsize=11168 CPUtime=3.08
/proc/20260/stat : 20260 (kw_preprocessor) R 20259 20259 20222 0 -1 0 2431 0 0 0 302 6 0 0 25 0 1 0 242248099 11436032 2229 1992294400 4194304 6416590 548682068912 18446744073709551615 4294550 0 0 4096 0 0 0 0 17 1 0 0
/proc/20260/statm: 2792 2229 254 542 0 2241 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 16524

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

[startup+3.5016 s]
/proc/loadavg: 0.08 0.16 0.70 2/66 20261
/proc/meminfo: memFree=864768/2055920 swapFree=4181940/4192956
[pid=20259] ppid=20257 vsize=5356 CPUtime=0
/proc/20259/stat : 20259 (kw_pre) S 20257 20259 20222 0 -1 4194304 280 0 0 0 0 0 0 0 18 0 1 0 242248099 5484544 231 1992294400 4194304 4889804 548682068832 18446744073709551615 226238194500 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/20259/statm: 1339 231 192 169 0 50 0
[pid=20260] ppid=20259 vsize=11300 CPUtime=3.49
/proc/20260/stat : 20260 (kw_preprocessor) R 20259 20259 20222 0 -1 0 2573 0 0 0 342 7 0 0 25 0 1 0 242248099 11571200 2302 1992294400 4194304 6416590 548682068912 18446744073709551615 5553607 0 0 4096 0 0 0 0 17 1 0 0
/proc/20260/statm: 2825 2302 254 542 0 2274 0
Current children cumulated CPU time (s) 3.49
Current children cumulated vsize (KiB) 16656

Child status: 0
Real time (s): 3.55551
CPU time (s): 3.55246
CPU user time (s): 3.47347
CPU system time (s): 0.078987
CPU usage (%): 99.9142
Max. virtual memory (cumulated for all children) (KiB): 16932

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.47347
system time used= 0.078987
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3007
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= 12
involuntary context switches= 20

runsolver used 0.004999 second user time and 0.014997 second system time

The end

Launcher Data 

Begin job on node58 at 2009-05-12 17:30:09
IDJOB=1805732
IDBENCH=24582
IDSOLVER=646
FILE ID=node58/1805732-1242142208
PBS_JOBID= 9289666
Free space on /tmp= 66068 MiB

SOLVER NAME= kw_pre 2009-03-21
BENCH NAME= SAT07/crafted/Medium/contest05/pebbling/unsat-pbl-00090.sat05-1326.reshuffled-07.cnf
COMMAND LINE= HOME/kw_pre BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1805732-1242142208/watcher-1805732-1242142208 -o /tmp/evaluation-result-1805732-1242142208/solver-1805732-1242142208 -C 1200 -W 1800 -M 1800  HOME/kw_pre HOME/instance-1805732-1242142208.cnf

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

MD5SUM BENCH= fc73c241ff6e8e1a49a6ff2500eb7905
RANDOM SEED=1919379443

node58.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		: 3000.233
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		: 3000.233
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:        873904 kB
Buffers:         82196 kB
Cached:         999984 kB
SwapCached:       4936 kB
Active:         259016 kB
Inactive:       831544 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        873904 kB
SwapTotal:     4192956 kB
SwapFree:      4181940 kB
Dirty:            3532 kB
Writeback:           0 kB
Mapped:          14572 kB
Slab:            77644 kB
Committed_AS:   799004 kB
PageTables:       1356 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= 66064 MiB
End job on node58 at 2009-05-12 17:30:12