Trace number 1805746

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 14.8787 14.8911

General information on the benchmark

Namecrafted/Medium/contest05/pebbling/
unsat-grid-pbl-0080.sat05-1344.reshuffled-07.cnf
MD5SUM35f2aba974a0579245ba9b669f0484ae
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.075988
Satisfiable
(Un)Satisfiability was proved
Number of variables6480
Number of clauses12722
Sum of the clauses size50722
Maximum clause length4
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 280
Number of clauses of size 30
Number of clauses of size 412640
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

14.78/14.89	This is MiniSat 2.0 beta
14.78/14.89	WARNING: for repeatability, setting FPU to use double precision
14.78/14.89	============================[ Problem Statistics ]=============================
14.78/14.89	|                                                                             |
14.78/14.89	|  Number of variables:  1                                                    |
14.78/14.89	|  Number of clauses:    2                                                    |
14.78/14.89	|  Parsing time:         0.00         s                                       |
14.78/14.89	Solved by unit propagation
14.78/14.89	UNSATISFIABLE
14.78/14.89	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-1805746-1242142210/watcher-1805746-1242142210 -o /tmp/evaluation-result-1805746-1242142210/solver-1805746-1242142210 -C 1200 -W 1800 -M 1800 HOME/kw_pre HOME/instance-1805746-1242142210.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: 0.17 0.11 0.60 3/64 18615
/proc/meminfo: memFree=869192/2055920 swapFree=4181384/4192956
[pid=18615] ppid=18613 vsize=5356 CPUtime=0
/proc/18615/stat : 18615 (kw_pre) R 18613 18615 18578 0 -1 4194304 262 0 0 0 0 0 0 0 20 0 1 0 242249078 5484544 230 1992294400 4194304 4889804 548682068832 18446744073709551615 264840473247 0 65538 4100 65536 0 0 0 17 0 0 0
/proc/18615/statm: 1339 230 191 169 0 50 0
[pid=18616] ppid=18615 vsize=2436 CPUtime=0
/proc/18616/stat : 18616 (kw_preprocessor) R 18615 18615 18578 0 -1 0 62 0 0 0 0 0 0 0 20 0 1 0 242249079 2494464 39 1992294400 4194304 6416590 548682068912 18446744073709551615 5391312 0 0 4096 0 0 0 0 17 0 0 0
/proc/18616/statm: 609 55 41 542 0 58 0

[startup+0.0861569 s]
/proc/loadavg: 0.17 0.11 0.60 3/64 18615
/proc/meminfo: memFree=869192/2055920 swapFree=4181384/4192956
[pid=18615] ppid=18613 vsize=5356 CPUtime=0
/proc/18615/stat : 18615 (kw_pre) S 18613 18615 18578 0 -1 4194304 280 0 0 0 0 0 0 0 20 0 1 0 242249078 5484544 231 1992294400 4194304 4889804 548682068832 18446744073709551615 264840471364 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/18615/statm: 1339 231 192 169 0 50 0
[pid=18616] ppid=18615 vsize=7192 CPUtime=0.07
/proc/18616/stat : 18616 (kw_preprocessor) R 18615 18615 18578 0 -1 0 1423 0 0 0 7 0 0 0 21 0 1 0 242249079 7364608 1362 1992294400 4194304 6416590 548682068912 18446744073709551615 5489867 0 0 4096 0 0 0 0 17 0 0 0
/proc/18616/statm: 1798 1366 226 542 0 1247 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 12548

[startup+0.101159 s]
/proc/loadavg: 0.17 0.11 0.60 3/64 18615
/proc/meminfo: memFree=869192/2055920 swapFree=4181384/4192956
[pid=18615] ppid=18613 vsize=5356 CPUtime=0
/proc/18615/stat : 18615 (kw_pre) S 18613 18615 18578 0 -1 4194304 280 0 0 0 0 0 0 0 20 0 1 0 242249078 5484544 231 1992294400 4194304 4889804 548682068832 18446744073709551615 264840471364 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/18615/statm: 1339 231 192 169 0 50 0
[pid=18616] ppid=18615 vsize=8192 CPUtime=0.08
/proc/18616/stat : 18616 (kw_preprocessor) R 18615 18615 18578 0 -1 0 1724 0 0 0 8 0 0 0 21 0 1 0 242249079 8388608 1662 1992294400 4194304 6416590 548682068912 18446744073709551615 5556880 0 0 4096 0 0 0 0 17 0 0 0
/proc/18616/statm: 2048 1662 242 542 0 1497 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 13548

[startup+0.301196 s]
/proc/loadavg: 0.17 0.11 0.60 3/64 18615
/proc/meminfo: memFree=869192/2055920 swapFree=4181384/4192956
[pid=18615] ppid=18613 vsize=5356 CPUtime=0
/proc/18615/stat : 18615 (kw_pre) S 18613 18615 18578 0 -1 4194304 280 0 0 0 0 0 0 0 20 0 1 0 242249078 5484544 231 1992294400 4194304 4889804 548682068832 18446744073709551615 264840471364 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/18615/statm: 1339 231 192 169 0 50 0
[pid=18616] ppid=18615 vsize=7988 CPUtime=0.29
/proc/18616/stat : 18616 (kw_preprocessor) R 18615 18615 18578 0 -1 0 1742 0 0 0 25 4 0 0 23 0 1 0 242249079 8179712 1629 1992294400 4194304 6416590 548682068912 18446744073709551615 5553607 0 0 4096 0 0 0 0 17 0 0 0
/proc/18616/statm: 1997 1629 249 542 0 1446 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 13344

[startup+0.701269 s]
/proc/loadavg: 0.17 0.11 0.60 3/64 18615
/proc/meminfo: memFree=869192/2055920 swapFree=4181384/4192956
[pid=18615] ppid=18613 vsize=5356 CPUtime=0
/proc/18615/stat : 18615 (kw_pre) S 18613 18615 18578 0 -1 4194304 280 0 0 0 0 0 0 0 20 0 1 0 242249078 5484544 231 1992294400 4194304 4889804 548682068832 18446744073709551615 264840471364 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/18615/statm: 1339 231 192 169 0 50 0
[pid=18616] ppid=18615 vsize=9916 CPUtime=0.69
/proc/18616/stat : 18616 (kw_preprocessor) R 18615 18615 18578 0 -1 0 2214 0 0 0 61 8 0 0 25 0 1 0 242249079 10153984 2101 1992294400 4194304 6416590 548682068912 18446744073709551615 5553607 0 0 4096 0 0 0 0 17 0 0 0
/proc/18616/statm: 2479 2101 249 542 0 1928 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 15272

[startup+1.50142 s]
/proc/loadavg: 0.17 0.11 0.60 2/66 18617
/proc/meminfo: memFree=860664/2055920 swapFree=4181384/4192956
[pid=18615] ppid=18613 vsize=5356 CPUtime=0
/proc/18615/stat : 18615 (kw_pre) S 18613 18615 18578 0 -1 4194304 280 0 0 0 0 0 0 0 20 0 1 0 242249078 5484544 231 1992294400 4194304 4889804 548682068832 18446744073709551615 264840471364 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/18615/statm: 1339 231 192 169 0 50 0
[pid=18616] ppid=18615 vsize=12312 CPUtime=1.48
/proc/18616/stat : 18616 (kw_preprocessor) R 18615 18615 18578 0 -1 0 2839 0 0 0 134 14 0 0 25 0 1 0 242249079 12607488 2675 1992294400 4194304 6416590 548682068912 18446744073709551615 5553607 0 0 4096 0 0 0 0 17 0 0 0
/proc/18616/statm: 3078 2675 254 542 0 2527 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 17668

[startup+3.10171 s]
/proc/loadavg: 0.17 0.11 0.60 2/66 18617
/proc/meminfo: memFree=857080/2055920 swapFree=4181384/4192956
[pid=18615] ppid=18613 vsize=5356 CPUtime=0
/proc/18615/stat : 18615 (kw_pre) S 18613 18615 18578 0 -1 4194304 280 0 0 0 0 0 0 0 20 0 1 0 242249078 5484544 231 1992294400 4194304 4889804 548682068832 18446744073709551615 264840471364 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/18615/statm: 1339 231 192 169 0 50 0
[pid=18616] ppid=18615 vsize=17560 CPUtime=3.08
/proc/18616/stat : 18616 (kw_preprocessor) R 18615 18615 18578 0 -1 0 4274 0 0 0 283 25 0 0 25 0 1 0 242249079 17981440 3905 1992294400 4194304 6416590 548682068912 18446744073709551615 5553607 0 0 4096 0 0 0 0 17 0 0 0
/proc/18616/statm: 4390 3905 254 542 0 3839 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 22916

[startup+6.30129 s]
/proc/loadavg: 0.24 0.13 0.60 2/66 18617
/proc/meminfo: memFree=848824/2055920 swapFree=4181384/4192956
[pid=18615] ppid=18613 vsize=5356 CPUtime=0
/proc/18615/stat : 18615 (kw_pre) S 18613 18615 18578 0 -1 4194304 280 0 0 0 0 0 0 0 20 0 1 0 242249078 5484544 231 1992294400 4194304 4889804 548682068832 18446744073709551615 264840471364 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/18615/statm: 1339 231 192 169 0 50 0
[pid=18616] ppid=18615 vsize=24972 CPUtime=6.28
/proc/18616/stat : 18616 (kw_preprocessor) R 18615 18615 18578 0 -1 0 6604 0 0 0 578 50 0 0 25 0 1 0 242249079 25571328 5790 1992294400 4194304 6416590 548682068912 18446744073709551615 5553607 0 0 4096 0 0 0 0 17 0 0 0
/proc/18616/statm: 6243 5790 254 542 0 5692 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 30328

[startup+12.7025 s]
/proc/loadavg: 0.30 0.14 0.60 2/66 18617
/proc/meminfo: memFree=830456/2055920 swapFree=4181384/4192956
[pid=18615] ppid=18613 vsize=5356 CPUtime=0
/proc/18615/stat : 18615 (kw_pre) S 18613 18615 18578 0 -1 4194304 280 0 0 0 0 0 0 0 20 0 1 0 242249078 5484544 231 1992294400 4194304 4889804 548682068832 18446744073709551615 264840471364 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/18615/statm: 1339 231 192 169 0 50 0
[pid=18616] ppid=18615 vsize=42864 CPUtime=12.68
/proc/18616/stat : 18616 (kw_preprocessor) R 18615 18615 18578 0 -1 0 11600 0 0 0 1177 91 0 0 25 0 1 0 242249079 43892736 10005 1992294400 4194304 6416590 548682068912 18446744073709551615 5553607 0 0 4096 0 0 0 0 17 0 0 0
/proc/18616/statm: 10716 10005 254 542 0 10165 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 48220

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

[startup+13.5016 s]
/proc/loadavg: 0.30 0.14 0.60 2/66 18617
/proc/meminfo: memFree=828728/2055920 swapFree=4181384/4192956
[pid=18615] ppid=18613 vsize=5356 CPUtime=0
/proc/18615/stat : 18615 (kw_pre) S 18613 18615 18578 0 -1 4194304 280 0 0 0 0 0 0 0 20 0 1 0 242249078 5484544 231 1992294400 4194304 4889804 548682068832 18446744073709551615 264840471364 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/18615/statm: 1339 231 192 169 0 50 0
[pid=18616] ppid=18615 vsize=44916 CPUtime=13.48
/proc/18616/stat : 18616 (kw_preprocessor) R 18615 18615 18578 0 -1 0 12052 0 0 0 1254 94 0 0 25 0 1 0 242249079 45993984 10457 1992294400 4194304 6416590 548682068912 18446744073709551615 4295353 0 0 4096 0 0 0 0 17 0 0 0
/proc/18616/statm: 11229 10457 254 542 0 10678 0
Current children cumulated CPU time (s) 13.48
Current children cumulated vsize (KiB) 50272

[startup+14.3058 s]
/proc/loadavg: 0.35 0.16 0.60 2/66 18617
/proc/meminfo: memFree=823352/2055920 swapFree=4181384/4192956
[pid=18615] ppid=18613 vsize=5356 CPUtime=0
/proc/18615/stat : 18615 (kw_pre) S 18613 18615 18578 0 -1 4194304 280 0 0 0 0 0 0 0 20 0 1 0 242249078 5484544 231 1992294400 4194304 4889804 548682068832 18446744073709551615 264840471364 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/18615/statm: 1339 231 192 169 0 50 0
[pid=18616] ppid=18615 vsize=49808 CPUtime=14.28
/proc/18616/stat : 18616 (kw_preprocessor) R 18615 18615 18578 0 -1 0 13138 0 0 0 1332 96 0 0 25 0 1 0 242249079 51003392 11543 1992294400 4194304 6416590 548682068912 18446744073709551615 4304388 0 0 4096 0 0 0 0 17 0 0 0
/proc/18616/statm: 12452 11543 254 542 0 11901 0
Current children cumulated CPU time (s) 14.28
Current children cumulated vsize (KiB) 55164

[startup+14.7018 s]
/proc/loadavg: 0.35 0.16 0.60 2/66 18617
/proc/meminfo: memFree=823352/2055920 swapFree=4181384/4192956
[pid=18615] ppid=18613 vsize=5356 CPUtime=0
/proc/18615/stat : 18615 (kw_pre) S 18613 18615 18578 0 -1 4194304 280 0 0 0 0 0 0 0 20 0 1 0 242249078 5484544 231 1992294400 4194304 4889804 548682068832 18446744073709551615 264840471364 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/18615/statm: 1339 231 192 169 0 50 0
[pid=18616] ppid=18615 vsize=49224 CPUtime=14.68
/proc/18616/stat : 18616 (kw_preprocessor) R 18615 18615 18578 0 -1 0 13270 0 0 0 1371 97 0 0 25 0 1 0 242249079 50405376 11400 1992294400 4194304 6416590 548682068912 18446744073709551615 5553607 0 0 4096 0 0 0 0 17 0 0 0
/proc/18616/statm: 12306 11400 254 542 0 11755 0
Current children cumulated CPU time (s) 14.68
Current children cumulated vsize (KiB) 54580

[startup+14.8018 s]
/proc/loadavg: 0.35 0.16 0.60 2/66 18617
/proc/meminfo: memFree=823352/2055920 swapFree=4181384/4192956
[pid=18615] ppid=18613 vsize=5356 CPUtime=0
/proc/18615/stat : 18615 (kw_pre) S 18613 18615 18578 0 -1 4194304 280 0 0 0 0 0 0 0 20 0 1 0 242249078 5484544 231 1992294400 4194304 4889804 548682068832 18446744073709551615 264840471364 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/18615/statm: 1339 231 192 169 0 50 0
[pid=18616] ppid=18615 vsize=49664 CPUtime=14.78
/proc/18616/stat : 18616 (kw_preprocessor) R 18615 18615 18578 0 -1 0 13323 0 0 0 1381 97 0 0 25 0 1 0 242249079 50855936 11453 1992294400 4194304 6416590 548682068912 18446744073709551615 5553607 0 0 4096 0 0 0 0 17 0 0 0
/proc/18616/statm: 12416 11453 254 542 0 11865 0
Current children cumulated CPU time (s) 14.78
Current children cumulated vsize (KiB) 55020

Child status: 0
Real time (s): 14.8911
CPU time (s): 14.8787
CPU user time (s): 13.8979
CPU system time (s): 0.98085
CPU usage (%): 99.9169
Max. virtual memory (cumulated for all children) (KiB): 55164

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 13.8979
system time used= 0.98085
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 13782
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= 9
involuntary context switches= 58

runsolver used 0.019996 second user time and 0.040993 second system time

The end

Launcher Data 

Begin job on node44 at 2009-05-12 17:30:11
IDJOB=1805746
IDBENCH=24589
IDSOLVER=646
FILE ID=node44/1805746-1242142210
PBS_JOBID= 9289679
Free space on /tmp= 66320 MiB

SOLVER NAME= kw_pre 2009-03-21
BENCH NAME= SAT07/crafted/Medium/contest05/pebbling/unsat-grid-pbl-0080.sat05-1344.reshuffled-07.cnf
COMMAND LINE= HOME/kw_pre BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1805746-1242142210/watcher-1805746-1242142210 -o /tmp/evaluation-result-1805746-1242142210/solver-1805746-1242142210 -C 1200 -W 1800 -M 1800  HOME/kw_pre HOME/instance-1805746-1242142210.cnf

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

MD5SUM BENCH= 35f2aba974a0579245ba9b669f0484ae
RANDOM SEED=1615565224

node44.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		: 3000.267
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	: 5931.00
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		: 3000.267
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:        869736 kB
Buffers:         84160 kB
Cached:        1003936 kB
SwapCached:       5480 kB
Active:         217308 kB
Inactive:       879160 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        869736 kB
SwapTotal:     4192956 kB
SwapFree:      4181384 kB
Dirty:            3524 kB
Writeback:           0 kB
Mapped:          14380 kB
Slab:            75796 kB
Committed_AS:   866572 kB
PageTables:       1380 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= 66316 MiB
End job on node44 at 2009-05-12 17:30:26