Trace number 1553205

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
picosat 913UNSAT 2.57461 2.5775

General information on the benchmark

NameAPPLICATIONS/bitverif/
minor/minor032.cnf
MD5SUM93c9f18c75548b864ec69c2789cae658
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.418935
Satisfiable
(Un)Satisfiability was proved
Number of variables4210
Number of clauses12053
Sum of the clauses size28121
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 28034
Number of clauses of size 34017
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.00	c PicoSAT SAT Solver Version 913
0.00/0.00	c Copyright (c) 2006 - 2009 Armin Biere JKU Linz
0.00/0.00	c gcc -Wall -Wextra -m32 -static -DNDEBUG -O3 -fomit-frame-pointer -finline-limit=1000000
0.00/0.00	c
0.00/0.00	c parsing HOME/instance-1553205-1238712346.cnf
0.00/0.00	c parsed header 'p cnf 4210 12053'
0.00/0.03	c initialized 4210 variables
0.00/0.03	c found 12053 non trivial clauses
0.00/0.03	c
0.00/0.03	c random number generator seed 0
0.00/0.03	c 
0.00/0.03	c  seconds     variables   original    learned     agility
0.00/0.03	c         level        used      conflicts    limit          MB
0.00/0.03	c 
0.00/0.03	c s   0.0   0.0  4185   1.0  4007     5     0     0   0.0   0.5 
0.03/0.04	c 
0.03/0.04	c initial reduction limit 2008 clauses
0.03/0.04	c 
0.03/0.04	c +   0.0  83.7  4185  20.1  4007   105   100  2208  23.9   0.5 
0.03/0.04	c N   0.0  83.7  4185  20.1  4007   106   101  2208  23.9   0.5 
0.03/0.05	c +   0.0  78.3  4185  33.4  4007   255   250  2428  22.4   0.5 
0.03/0.06	c R   0.1  63.6  4185  43.4  4007   406   401  2428  11.9   0.6 
0.03/0.06	c +   0.1  61.1  4185  55.5  4007   480   474  2670  21.6   0.6 
0.03/0.08	c +   0.1  58.1  4185  64.8  4007   817   811  2937  20.0   0.6 
0.09/0.11	c R   0.1  67.5  4185  71.2  4007  1212  1203  2937  21.0   0.7 
0.09/0.12	c +   0.1  64.2  4185  71.2  4007  1322  1313  3230  18.2   0.7 
0.09/0.17	c +   0.2  59.9  4185  78.6  4007  2079  2067  3553   7.6   0.8 
0.19/0.27	c +   0.3  57.5  4185  84.1  4007  3214  3200  3908  27.7   1.0 
0.19/0.27	c N   0.3  57.5  4185  84.1  4007  3217  3203  3908  28.2   1.0 
0.39/0.44	c +   0.4  60.6  4185  92.8  4007  4916  2934  4298  11.0   1.0 
0.69/0.75	c +   0.8  72.8  4185  96.9  4007  7469  3284  4727  22.0   1.4 
0.79/0.83	c R   0.8  73.9  4185  96.9  4007  8034  3847  4727  16.0   1.6 
1.19/1.22	c +   1.2  75.3  4185  96.9  4007 11298  4709  5199  12.9   1.8 
1.79/1.83	c +   1.8  71.0  4185  96.9  4007 17041  5187  5718  14.2   1.6 
1.99/2.09	c R   2.1  69.6  4185  96.9  4007 19281  4521  5718  15.9   1.4 
2.20/2.29	c s   2.3  67.9  4182  96.9  4007 21016  3382  5718  13.8   1.1 
2.29/2.30	c R   2.3  67.8  4182  96.9  4007 21119  3485  5718  11.0   1.2 
2.29/2.33	c R   2.3  67.4  4182  96.9  4007 21421  3786  5718  16.9   1.2 
2.29/2.33	c 
2.29/2.33	c  seconds     variables   original    learned     agility
2.29/2.33	c         level        used      conflicts    limit          MB
2.29/2.33	c 
2.39/2.42	c N   2.4  66.6  4182  96.9  4007 22225  4590  5718  29.1   1.4 
2.49/2.57	c 0   2.6  65.2  3655  96.9  4007 23736  3217  5718  10.5   1.0 
2.49/2.57	c 
2.49/2.57	c  seconds     variables   original    learned     agility
2.49/2.57	c         level        used      conflicts    limit          MB
2.49/2.57	c 
2.49/2.57	s UNSATISFIABLE
2.49/2.57	c
2.49/2.57	c 1 iterations
2.49/2.57	c 79 restarts
2.49/2.57	c 7 failed literals
2.49/2.57	c 23736 conflicts
2.49/2.57	c 61722 decisions
2.49/2.57	c 555 fixed variables
2.49/2.57	c 1295410 learned literals
2.49/2.57	c 20.9% deleted literals
2.49/2.57	c 8334781 propagations
2.49/2.57	c 96.9% variables used
2.49/2.57	c 2.6 seconds in library
2.49/2.57	c 3.2 megaprops/second
2.49/2.57	c 2 simplifications
2.49/2.57	c 8 reductions
2.49/2.57	c 4.9 MB recycled
2.49/2.57	c 1.9 MB maximally allocated
2.49/2.57	c 2.6 seconds total run time

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-1553205-1238712346/watcher-1553205-1238712346 -o /tmp/evaluation-result-1553205-1238712346/solver-1553205-1238712346 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/picosat HOME/instance-1553205-1238712346.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: 1.64 1.73 1.59 2/81 5794
/proc/meminfo: memFree=1364336/2055920 swapFree=4169692/4192956
[pid=5794] ppid=5792 vsize=1084 CPUtime=0
/proc/5794/stat : 5794 (picosat) R 5792 5794 5644 0 -1 4194304 169 0 0 0 0 0 0 0 20 0 1 0 497563502 1110016 154 1992294400 134512640 135137933 4294956224 18446744073709551615 134668310 0 0 4096 0 0 0 0 17 1 0 0
/proc/5794/statm: 271 154 56 152 0 117 0

[startup+0.041324 s]
/proc/loadavg: 1.64 1.73 1.59 2/81 5794
/proc/meminfo: memFree=1364336/2055920 swapFree=4169692/4192956
[pid=5794] ppid=5792 vsize=1360 CPUtime=0.03
/proc/5794/stat : 5794 (picosat) R 5792 5794 5644 0 -1 4194304 235 0 0 0 3 0 0 0 20 0 1 0 497563502 1392640 220 1992294400 134512640 135137933 4294956224 18446744073709551615 134668310 0 0 4096 0 0 0 0 17 1 0 0
/proc/5794/statm: 340 220 68 152 0 186 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 1360

[startup+0.101329 s]
/proc/loadavg: 1.64 1.73 1.59 2/81 5794
/proc/meminfo: memFree=1364336/2055920 swapFree=4169692/4192956
[pid=5794] ppid=5792 vsize=1492 CPUtime=0.09
/proc/5794/stat : 5794 (picosat) R 5792 5794 5644 0 -1 4194304 265 0 0 0 9 0 0 0 20 0 1 0 497563502 1527808 250 1992294400 134512640 135137933 4294956224 18446744073709551615 134522769 0 0 4096 0 0 0 0 17 1 0 0
/proc/5794/statm: 373 250 69 152 0 219 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1492

[startup+0.301349 s]
/proc/loadavg: 1.64 1.73 1.59 2/81 5794
/proc/meminfo: memFree=1364336/2055920 swapFree=4169692/4192956
[pid=5794] ppid=5792 vsize=1888 CPUtime=0.29
/proc/5794/stat : 5794 (picosat) R 5792 5794 5644 0 -1 4194304 372 0 0 0 29 0 0 0 22 0 1 0 497563502 1933312 357 1992294400 134512640 135137933 4294956224 18446744073709551615 134548888 0 0 4096 0 0 0 0 17 1 0 0
/proc/5794/statm: 472 357 69 152 0 318 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1888

[startup+0.701388 s]
/proc/loadavg: 1.64 1.73 1.59 2/81 5794
/proc/meminfo: memFree=1364336/2055920 swapFree=4169692/4192956
[pid=5794] ppid=5792 vsize=2284 CPUtime=0.69
/proc/5794/stat : 5794 (picosat) R 5792 5794 5644 0 -1 4194304 469 0 0 0 69 0 0 0 25 0 1 0 497563502 2338816 454 1992294400 134512640 135137933 4294956224 18446744073709551615 134548908 0 0 4096 0 0 0 0 17 1 0 0
/proc/5794/statm: 571 454 69 152 0 417 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2284

[startup+1.50147 s]
/proc/loadavg: 1.64 1.73 1.59 2/82 5795
/proc/meminfo: memFree=1362344/2055920 swapFree=4169692/4192956
[pid=5794] ppid=5792 vsize=2812 CPUtime=1.49
/proc/5794/stat : 5794 (picosat) R 5792 5794 5644 0 -1 4194304 601 0 0 0 149 0 0 0 25 0 1 0 497563502 2879488 586 1992294400 134512640 135137933 4294956224 18446744073709551615 134549074 0 0 4096 0 0 0 0 17 1 0 0
/proc/5794/statm: 703 586 69 152 0 549 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2812

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

[startup+2.30154 s]
/proc/loadavg: 1.64 1.73 1.59 2/82 5795
/proc/meminfo: memFree=1362088/2055920 swapFree=4169692/4192956
[pid=5794] ppid=5792 vsize=2812 CPUtime=2.29
/proc/5794/stat : 5794 (picosat) R 5792 5794 5644 0 -1 4194304 602 0 0 0 229 0 0 0 25 0 1 0 497563502 2879488 587 1992294400 134512640 135137933 4294956224 18446744073709551615 134547672 0 0 4096 0 0 0 0 17 1 0 0
/proc/5794/statm: 703 587 69 152 0 549 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 2812

[startup+2.50156 s]
/proc/loadavg: 1.64 1.73 1.59 2/82 5795
/proc/meminfo: memFree=1362088/2055920 swapFree=4169692/4192956
[pid=5794] ppid=5792 vsize=2812 CPUtime=2.49
/proc/5794/stat : 5794 (picosat) R 5792 5794 5644 0 -1 4194304 602 0 0 0 249 0 0 0 25 0 1 0 497563502 2879488 587 1992294400 134512640 135137933 4294956224 18446744073709551615 134551329 0 0 4096 0 0 0 0 17 1 0 0
/proc/5794/statm: 703 587 69 152 0 549 0
Current children cumulated CPU time (s) 2.49
Current children cumulated vsize (KiB) 2812

Child status: 20
Real time (s): 2.5775
CPU time (s): 2.57461
CPU user time (s): 2.57261
CPU system time (s): 0.001999
CPU usage (%): 99.8878
Max. virtual memory (cumulated for all children) (KiB): 2812

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.57261
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 604
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= 1
involuntary context switches= 7

runsolver used 0.003999 second user time and 0.016997 second system time

The end

Launcher Data 

Begin job on node89 at 2009-04-03 00:45:46
IDJOB=1553205
IDBENCH=70757
IDSOLVER=506
FILE ID=node89/1553205-1238712346
PBS_JOBID= 9085322
Free space on /tmp= 66364 MiB

SOLVER NAME= picosat 913
BENCH NAME= SAT09/APPLICATIONS/bitverif/minor/minor032.cnf
COMMAND LINE= HOME/picosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1553205-1238712346/watcher-1553205-1238712346 -o /tmp/evaluation-result-1553205-1238712346/solver-1553205-1238712346 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/picosat HOME/instance-1553205-1238712346.cnf

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

MD5SUM BENCH= 93c9f18c75548b864ec69c2789cae658
RANDOM SEED=1683665170

node89.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		: 3000.240
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		: 3000.240
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:       1364816 kB
Buffers:         94332 kB
Cached:         497436 kB
SwapCached:      12480 kB
Active:         245744 kB
Inactive:       360532 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1364816 kB
SwapTotal:     4192956 kB
SwapFree:      4169692 kB
Dirty:             996 kB
Writeback:           0 kB
Mapped:          19564 kB
Slab:            69020 kB
Committed_AS:  1617264 kB
PageTables:       2600 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= 66364 MiB
End job on node89 at 2009-04-03 00:45:49