Trace number 1806803

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 2.58861 2.58991

General information on the benchmark

NameCRAFTED/sgen/unsat/
sgen1-unsat-61-100.cnf
MD5SUM43b8e7efe061e21db6b4c047915ae87c
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark2.58861
Satisfiable
(Un)Satisfiability was proved
Number of variables61
Number of clauses132
Sum of the clauses size396
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 3132
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

2.49/2.58	This is MiniSat 2.0 beta
2.49/2.58	WARNING: for repeatability, setting FPU to use double precision
2.49/2.58	============================[ Problem Statistics ]=============================
2.49/2.58	|                                                                             |
2.49/2.58	|  Number of variables:  1                                                    |
2.49/2.58	|  Number of clauses:    2                                                    |
2.49/2.58	|  Parsing time:         0.00         s                                       |
2.49/2.58	Solved by unit propagation
2.49/2.58	UNSATISFIABLE
2.49/2.58	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-1806803-1242152400/watcher-1806803-1242152400 -o /tmp/evaluation-result-1806803-1242152400/solver-1806803-1242152400 -C 1200 -W 1800 -M 1800 HOME/kw_pre HOME/instance-1806803-1242152400.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: 0.98 1.00 1.00 3/64 16905
/proc/meminfo: memFree=1273208/2055920 swapFree=4181464/4192956
[pid=16905] ppid=16903 vsize=5356 CPUtime=0
/proc/16905/stat : 16905 (kw_pre) S 16903 16905 16461 0 -1 4194304 280 0 0 0 0 0 0 0 18 0 1 0 243268607 5484544 231 1992294400 4194304 4889804 548682068832 18446744073709551615 240907772740 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/16905/statm: 1339 231 192 169 0 50 0
[pid=16906] ppid=16905 vsize=2632 CPUtime=0
/proc/16906/stat : 16906 (kw_preprocessor) R 16905 16905 16461 0 -1 0 311 0 0 0 0 0 0 0 19 0 1 0 243268608 2695168 287 1992294400 4194304 6416590 548682068912 18446744073709551615 5553607 0 0 4096 0 0 0 0 17 0 0 0
/proc/16906/statm: 658 287 238 542 0 107 0

[startup+0.0557631 s]
/proc/loadavg: 0.98 1.00 1.00 3/64 16905
/proc/meminfo: memFree=1273208/2055920 swapFree=4181464/4192956
[pid=16905] ppid=16903 vsize=5356 CPUtime=0
/proc/16905/stat : 16905 (kw_pre) S 16903 16905 16461 0 -1 4194304 280 0 0 0 0 0 0 0 18 0 1 0 243268607 5484544 231 1992294400 4194304 4889804 548682068832 18446744073709551615 240907772740 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/16905/statm: 1339 231 192 169 0 50 0
[pid=16906] ppid=16905 vsize=3160 CPUtime=0.05
/proc/16906/stat : 16906 (kw_preprocessor) R 16905 16905 16461 0 -1 0 429 0 0 0 5 0 0 0 19 0 1 0 243268608 3235840 405 1992294400 4194304 6416590 548682068912 18446744073709551615 5553607 0 0 4096 0 0 0 0 17 0 0 0
/proc/16906/statm: 790 405 239 542 0 239 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 8516

[startup+0.101767 s]
/proc/loadavg: 0.98 1.00 1.00 3/64 16905
/proc/meminfo: memFree=1273208/2055920 swapFree=4181464/4192956
[pid=16905] ppid=16903 vsize=5356 CPUtime=0
/proc/16905/stat : 16905 (kw_pre) S 16903 16905 16461 0 -1 4194304 280 0 0 0 0 0 0 0 18 0 1 0 243268607 5484544 231 1992294400 4194304 4889804 548682068832 18446744073709551615 240907772740 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/16905/statm: 1339 231 192 169 0 50 0
[pid=16906] ppid=16905 vsize=3424 CPUtime=0.09
/proc/16906/stat : 16906 (kw_preprocessor) R 16905 16905 16461 0 -1 0 510 0 0 0 9 0 0 0 19 0 1 0 243268608 3506176 486 1992294400 4194304 6416590 548682068912 18446744073709551615 5553607 0 0 4096 0 0 0 0 17 0 0 0
/proc/16906/statm: 856 486 239 542 0 305 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8780

[startup+0.301786 s]
/proc/loadavg: 0.98 1.00 1.00 3/64 16905
/proc/meminfo: memFree=1273208/2055920 swapFree=4181464/4192956
[pid=16905] ppid=16903 vsize=5356 CPUtime=0
/proc/16905/stat : 16905 (kw_pre) S 16903 16905 16461 0 -1 4194304 280 0 0 0 0 0 0 0 18 0 1 0 243268607 5484544 231 1992294400 4194304 4889804 548682068832 18446744073709551615 240907772740 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/16905/statm: 1339 231 192 169 0 50 0
[pid=16906] ppid=16905 vsize=4728 CPUtime=0.29
/proc/16906/stat : 16906 (kw_preprocessor) R 16905 16905 16461 0 -1 0 818 0 0 0 29 0 0 0 21 0 1 0 243268608 4841472 794 1992294400 4194304 6416590 548682068912 18446744073709551615 5553607 0 0 4096 0 0 0 0 17 0 0 0
/proc/16906/statm: 1182 794 239 542 0 631 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 10084

[startup+0.701827 s]
/proc/loadavg: 0.98 1.00 1.00 3/64 16905
/proc/meminfo: memFree=1273208/2055920 swapFree=4181464/4192956
[pid=16905] ppid=16903 vsize=5356 CPUtime=0
/proc/16905/stat : 16905 (kw_pre) S 16903 16905 16461 0 -1 4194304 280 0 0 0 0 0 0 0 18 0 1 0 243268607 5484544 231 1992294400 4194304 4889804 548682068832 18446744073709551615 240907772740 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/16905/statm: 1339 231 192 169 0 50 0
[pid=16906] ppid=16905 vsize=6540 CPUtime=0.68
/proc/16906/stat : 16906 (kw_preprocessor) R 16905 16905 16461 0 -1 0 1199 0 0 0 68 0 0 0 25 0 1 0 243268608 6696960 1135 1992294400 4194304 6416590 548682068912 18446744073709551615 5553607 0 0 4096 0 0 0 0 17 0 0 0
/proc/16906/statm: 1635 1135 240 542 0 1084 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 11896

[startup+1.50191 s]
/proc/loadavg: 0.98 1.00 1.00 2/66 16907
/proc/meminfo: memFree=1268776/2055920 swapFree=4181464/4192956
[pid=16905] ppid=16903 vsize=5356 CPUtime=0
/proc/16905/stat : 16905 (kw_pre) S 16903 16905 16461 0 -1 4194304 280 0 0 0 0 0 0 0 18 0 1 0 243268607 5484544 231 1992294400 4194304 4889804 548682068832 18446744073709551615 240907772740 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/16905/statm: 1339 231 192 169 0 50 0
[pid=16906] ppid=16905 vsize=7588 CPUtime=1.48
/proc/16906/stat : 16906 (kw_preprocessor) R 16905 16905 16461 0 -1 0 1494 0 0 0 147 1 0 0 25 0 1 0 243268608 7770112 1385 1992294400 4194304 6416590 548682068912 18446744073709551615 5553607 0 0 4096 0 0 0 0 17 0 0 0
/proc/16906/statm: 1897 1385 245 542 0 1346 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 12944

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

[startup+2.30198 s]
/proc/loadavg: 0.98 1.00 1.00 2/66 16907
/proc/meminfo: memFree=1267816/2055920 swapFree=4181464/4192956
[pid=16905] ppid=16903 vsize=5356 CPUtime=0
/proc/16905/stat : 16905 (kw_pre) S 16903 16905 16461 0 -1 4194304 280 0 0 0 0 0 0 0 18 0 1 0 243268607 5484544 231 1992294400 4194304 4889804 548682068832 18446744073709551615 240907772740 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/16905/statm: 1339 231 192 169 0 50 0
[pid=16906] ppid=16905 vsize=8552 CPUtime=2.29
/proc/16906/stat : 16906 (kw_preprocessor) R 16905 16905 16461 0 -1 0 1788 0 0 0 227 2 0 0 25 0 1 0 243268608 8757248 1627 1992294400 4194304 6416590 548682068912 18446744073709551615 4304340 0 0 4096 0 0 0 0 17 0 0 0
/proc/16906/statm: 2138 1627 245 542 0 1587 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 13908

[startup+2.502 s]
/proc/loadavg: 0.98 1.00 1.00 2/66 16907
/proc/meminfo: memFree=1267816/2055920 swapFree=4181464/4192956
[pid=16905] ppid=16903 vsize=5356 CPUtime=0
/proc/16905/stat : 16905 (kw_pre) S 16903 16905 16461 0 -1 4194304 280 0 0 0 0 0 0 0 18 0 1 0 243268607 5484544 231 1992294400 4194304 4889804 548682068832 18446744073709551615 240907772740 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/16905/statm: 1339 231 192 169 0 50 0
[pid=16906] ppid=16905 vsize=8312 CPUtime=2.49
/proc/16906/stat : 16906 (kw_preprocessor) R 16905 16905 16461 0 -1 0 1790 0 0 0 247 2 0 0 25 0 1 0 243268608 8511488 1569 1992294400 4194304 6416590 548682068912 18446744073709551615 5553607 0 0 4096 0 0 0 0 17 0 0 0
/proc/16906/statm: 2078 1569 245 542 0 1527 0
Current children cumulated CPU time (s) 2.49
Current children cumulated vsize (KiB) 13668

Child status: 0
Real time (s): 2.58991
CPU time (s): 2.58861
CPU user time (s): 2.55661
CPU system time (s): 0.031995
CPU usage (%): 99.9497
Max. virtual memory (cumulated for all children) (KiB): 13908

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.55661
system time used= 0.031995
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2245
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= 8
involuntary context switches= 20

runsolver used 0.006998 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node36 at 2009-05-12 20:20:00
IDJOB=1806803
IDBENCH=71108
IDSOLVER=646
FILE ID=node36/1806803-1242152400
PBS_JOBID= 9289685
Free space on /tmp= 66220 MiB

SOLVER NAME= kw_pre 2009-03-21
BENCH NAME= SAT09/CRAFTED/sgen/unsat/sgen1-unsat-61-100.cnf
COMMAND LINE= HOME/kw_pre BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1806803-1242152400/watcher-1806803-1242152400 -o /tmp/evaluation-result-1806803-1242152400/solver-1806803-1242152400 -C 1200 -W 1800 -M 1800  HOME/kw_pre HOME/instance-1806803-1242152400.cnf

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

MD5SUM BENCH= 43b8e7efe061e21db6b4c047915ae87c
RANDOM SEED=903976049

node36.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		: 3000.232
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		: 3000.232
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:       1273688 kB
Buffers:         72044 kB
Cached:         617240 kB
SwapCached:       5268 kB
Active:         118972 kB
Inactive:       578112 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1273688 kB
SwapTotal:     4192956 kB
SwapFree:      4181464 kB
Dirty:            3188 kB
Writeback:           0 kB
Mapped:          13500 kB
Slab:            71220 kB
Committed_AS:   856824 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= 66216 MiB
End job on node36 at 2009-05-12 20:20:03