Trace number 1805739

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 1.89371 1.89573

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 benchmark0.527919
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 

1.79/1.89	This is MiniSat 2.0 beta
1.79/1.89	WARNING: for repeatability, setting FPU to use double precision
1.79/1.89	============================[ Problem Statistics ]=============================
1.79/1.89	|                                                                             |
1.79/1.89	|  Number of variables:  1                                                    |
1.79/1.89	|  Number of clauses:    2                                                    |
1.79/1.89	|  Parsing time:         0.00         s                                       |
1.79/1.89	Solved by unit propagation
1.79/1.89	UNSATISFIABLE
1.79/1.89	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-1805739-1242142209/watcher-1805739-1242142209 -o /tmp/evaluation-result-1805739-1242142209/solver-1805739-1242142209 -C 1200 -W 1800 -M 1800 HOME/kw_pre HOME/instance-1805739-1242142209.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 0.00 0.37 3/64 14320
/proc/meminfo: memFree=1140976/2055920 swapFree=4178620/4192956
[pid=14320] ppid=14318 vsize=5356 CPUtime=0
/proc/14320/stat : 14320 (kw_pre) R 14318 14320 14283 0 -1 4194304 262 0 0 0 0 0 0 0 18 0 1 0 242248990 5484544 230 1992294400 4194304 4889804 548682068832 18446744073709551615 221954763423 0 65538 4100 65536 0 0 0 17 0 0 0
/proc/14320/statm: 1339 230 191 169 0 50 0
[pid=14321] ppid=14320 vsize=2792 CPUtime=0
/proc/14321/stat : 14321 (kw_preprocessor) R 14320 14320 14283 0 -1 0 326 0 0 0 0 0 0 0 18 0 1 0 242248990 2859008 302 1992294400 4194304 6416590 548682068912 18446744073709551615 5489867 0 0 4096 0 0 0 0 17 0 0 0
/proc/14321/statm: 698 302 217 542 0 147 0

[startup+0.047807 s]
/proc/loadavg: 0.00 0.00 0.37 3/64 14320
/proc/meminfo: memFree=1140976/2055920 swapFree=4178620/4192956
[pid=14320] ppid=14318 vsize=5356 CPUtime=0
/proc/14320/stat : 14320 (kw_pre) S 14318 14320 14283 0 -1 4194304 280 0 0 0 0 0 0 0 18 0 1 0 242248990 5484544 231 1992294400 4194304 4889804 548682068832 18446744073709551615 221954761540 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/14320/statm: 1339 231 192 169 0 50 0
[pid=14321] ppid=14320 vsize=3456 CPUtime=0.04
/proc/14321/stat : 14321 (kw_preprocessor) R 14320 14320 14283 0 -1 0 479 0 0 0 4 0 0 0 19 0 1 0 242248990 3538944 455 1992294400 4194304 6416590 548682068912 18446744073709551615 5511179 0 0 4096 0 0 0 0 17 0 0 0
/proc/14321/statm: 864 455 217 542 0 313 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 8812

[startup+0.10181 s]
/proc/loadavg: 0.00 0.00 0.37 3/64 14320
/proc/meminfo: memFree=1140976/2055920 swapFree=4178620/4192956
[pid=14320] ppid=14318 vsize=5356 CPUtime=0
/proc/14320/stat : 14320 (kw_pre) S 14318 14320 14283 0 -1 4194304 280 0 0 0 0 0 0 0 18 0 1 0 242248990 5484544 231 1992294400 4194304 4889804 548682068832 18446744073709551615 221954761540 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/14320/statm: 1339 231 192 169 0 50 0
[pid=14321] ppid=14320 vsize=5056 CPUtime=0.09
/proc/14321/stat : 14321 (kw_preprocessor) R 14320 14320 14283 0 -1 0 917 0 0 0 9 0 0 0 19 0 1 0 242248990 5177344 893 1992294400 4194304 6416590 548682068912 18446744073709551615 4567291 0 0 4096 0 0 0 0 17 0 0 0
/proc/14321/statm: 1264 893 233 542 0 713 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 10412

[startup+0.301828 s]
/proc/loadavg: 0.00 0.00 0.37 3/64 14320
/proc/meminfo: memFree=1140976/2055920 swapFree=4178620/4192956
[pid=14320] ppid=14318 vsize=5356 CPUtime=0
/proc/14320/stat : 14320 (kw_pre) S 14318 14320 14283 0 -1 4194304 280 0 0 0 0 0 0 0 18 0 1 0 242248990 5484544 231 1992294400 4194304 4889804 548682068832 18446744073709551615 221954761540 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/14320/statm: 1339 231 192 169 0 50 0
[pid=14321] ppid=14320 vsize=5240 CPUtime=0.29
/proc/14321/stat : 14321 (kw_preprocessor) R 14320 14320 14283 0 -1 0 940 0 0 0 29 0 0 0 21 0 1 0 242248990 5365760 916 1992294400 4194304 6416590 548682068912 18446744073709551615 4567227 0 0 4096 0 0 0 0 17 0 0 0
/proc/14321/statm: 1310 916 233 542 0 759 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 10596

[startup+0.701863 s]
/proc/loadavg: 0.00 0.00 0.37 3/64 14320
/proc/meminfo: memFree=1140976/2055920 swapFree=4178620/4192956
[pid=14320] ppid=14318 vsize=5356 CPUtime=0
/proc/14320/stat : 14320 (kw_pre) S 14318 14320 14283 0 -1 4194304 280 0 0 0 0 0 0 0 18 0 1 0 242248990 5484544 231 1992294400 4194304 4889804 548682068832 18446744073709551615 221954761540 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/14320/statm: 1339 231 192 169 0 50 0
[pid=14321] ppid=14320 vsize=6212 CPUtime=0.68
/proc/14321/stat : 14321 (kw_preprocessor) R 14320 14320 14283 0 -1 0 1178 0 0 0 68 0 0 0 25 0 1 0 242248990 6361088 1154 1992294400 4194304 6416590 548682068912 18446744073709551615 4524995 0 0 4096 0 0 0 0 17 0 0 0
/proc/14321/statm: 1553 1154 242 542 0 1002 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 11568

[startup+1.50194 s]
/proc/loadavg: 0.00 0.00 0.37 2/66 14322
/proc/meminfo: memFree=1136544/2055920 swapFree=4178620/4192956
[pid=14320] ppid=14318 vsize=5356 CPUtime=0
/proc/14320/stat : 14320 (kw_pre) S 14318 14320 14283 0 -1 4194304 280 0 0 0 0 0 0 0 18 0 1 0 242248990 5484544 231 1992294400 4194304 4889804 548682068832 18446744073709551615 221954761540 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/14320/statm: 1339 231 192 169 0 50 0
[pid=14321] ppid=14320 vsize=8080 CPUtime=1.49
/proc/14321/stat : 14321 (kw_preprocessor) R 14320 14320 14283 0 -1 0 1644 0 0 0 147 2 0 0 25 0 1 0 242248990 8273920 1580 1992294400 4194304 6416590 548682068912 18446744073709551615 5553607 0 0 4096 0 0 0 0 17 0 0 0
/proc/14321/statm: 2020 1580 250 542 0 1469 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 13436

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

[startup+1.70195 s]
/proc/loadavg: 0.00 0.00 0.37 2/66 14322
/proc/meminfo: memFree=1136544/2055920 swapFree=4178620/4192956
[pid=14320] ppid=14318 vsize=5356 CPUtime=0
/proc/14320/stat : 14320 (kw_pre) S 14318 14320 14283 0 -1 4194304 280 0 0 0 0 0 0 0 18 0 1 0 242248990 5484544 231 1992294400 4194304 4889804 548682068832 18446744073709551615 221954761540 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/14320/statm: 1339 231 192 169 0 50 0
[pid=14321] ppid=14320 vsize=8548 CPUtime=1.69
/proc/14321/stat : 14321 (kw_preprocessor) R 14320 14320 14283 0 -1 0 1755 0 0 0 166 3 0 0 25 0 1 0 242248990 8753152 1691 1992294400 4194304 6416590 548682068912 18446744073709551615 4294579 0 0 4096 0 0 0 0 17 0 0 0
/proc/14321/statm: 2137 1691 253 542 0 1586 0
Current children cumulated CPU time (s) 1.69
Current children cumulated vsize (KiB) 13904

[startup+1.80196 s]
/proc/loadavg: 0.00 0.00 0.37 2/66 14322
/proc/meminfo: memFree=1136544/2055920 swapFree=4178620/4192956
[pid=14320] ppid=14318 vsize=5356 CPUtime=0
/proc/14320/stat : 14320 (kw_pre) S 14318 14320 14283 0 -1 4194304 280 0 0 0 0 0 0 0 18 0 1 0 242248990 5484544 231 1992294400 4194304 4889804 548682068832 18446744073709551615 221954761540 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/14320/statm: 1339 231 192 169 0 50 0
[pid=14321] ppid=14320 vsize=8712 CPUtime=1.79
/proc/14321/stat : 14321 (kw_preprocessor) R 14320 14320 14283 0 -1 0 1780 0 0 0 176 3 0 0 25 0 1 0 242248990 8921088 1716 1992294400 4194304 6416590 548682068912 18446744073709551615 4272355 0 0 4096 0 0 0 0 17 0 0 0
/proc/14321/statm: 2178 1716 253 542 0 1627 0
Current children cumulated CPU time (s) 1.79
Current children cumulated vsize (KiB) 14068

Child status: 0
Real time (s): 1.89573
CPU time (s): 1.89371
CPU user time (s): 1.85572
CPU system time (s): 0.037994
CPU usage (%): 99.8935
Max. virtual memory (cumulated for all children) (KiB): 14068

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.85572
system time used= 0.037994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2255
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= 11
involuntary context switches= 18

runsolver used 0.005999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node43 at 2009-05-12 17:30:09
IDJOB=1805739
IDBENCH=24586
IDSOLVER=646
FILE ID=node43/1805739-1242142209
PBS_JOBID= 9289680
Free space on /tmp= 66184 MiB

SOLVER NAME= kw_pre 2009-03-21
BENCH NAME= SAT07/crafted/Medium/contest05/pebbling/unsat-pbl-00080.sat05-1325.reshuffled-07.cnf
COMMAND LINE= HOME/kw_pre BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1805739-1242142209/watcher-1805739-1242142209 -o /tmp/evaluation-result-1805739-1242142209/solver-1805739-1242142209 -C 1200 -W 1800 -M 1800  HOME/kw_pre HOME/instance-1805739-1242142209.cnf

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

MD5SUM BENCH= 270191e44d7630b87c6baceebf140e40
RANDOM SEED=1615565224

node43.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		: 3000.237
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		: 3000.237
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:       1141520 kB
Buffers:         56984 kB
Cached:         772516 kB
SwapCached:       8124 kB
Active:          80104 kB
Inactive:       759688 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1141520 kB
SwapTotal:     4192956 kB
SwapFree:      4178620 kB
Dirty:            3592 kB
Writeback:           0 kB
Mapped:          13936 kB
Slab:            60628 kB
Committed_AS:   924060 kB
PageTables:       1444 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= 66180 MiB
End job on node43 at 2009-05-12 17:30:11