Trace number 1717975

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 3.13152 3.13263

General information on the benchmark

Nameindustrial/babic/hsatv17/
hsat_vc11803.cnf
MD5SUM6c6fd606fd41d7205b07602118ad74a0
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.52177
Satisfiable
(Un)Satisfiability was proved
Number of variables276402
Number of clauses798348
Sum of the clauses size2080196
Maximum clause length3
Minimum clause length1
Number of clauses of size 131560
Number of clauses of size 2251728
Number of clauses of size 3515060
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-1717975-1240632301.cnf
0.00/0.00	c parsed header 'p cnf 276427 798348'
2.89/2.95	c initialized 276427 variables
2.89/2.95	c found 798348 non trivial clauses
2.89/2.95	c
2.89/2.95	c random number generator seed 0
2.89/2.95	c 
2.89/2.95	c  seconds     variables   original    learned     agility
2.89/2.95	c         level        used      conflicts    limit          MB
2.89/2.95	c 
2.89/2.95	c s   3.0   0.0 240e3  13.3 511e3  1588     0     0   0.0  38.2 
2.99/3.06	c 
2.99/3.06	c initial reduction limit 257529 clauses
2.99/3.06	c 
2.99/3.06	c 0   3.1 367.8 240e3  13.4 511e3  1592     0 257e3   1.2  38.4 
3.09/3.13	c 
3.09/3.13	c  seconds     variables   original    learned     agility
3.09/3.13	c         level        used      conflicts    limit          MB
3.09/3.13	c 
3.09/3.13	s UNSATISFIABLE
3.09/3.13	c
3.09/3.13	c 1 iterations
3.09/3.13	c 0 restarts
3.09/3.13	c 1588 failed literals
3.09/3.13	c 1592 conflicts
3.09/3.13	c 1469 decisions
3.09/3.13	c 36334 fixed variables
3.09/3.13	c 4776 learned literals
3.09/3.13	c 0.0% deleted literals
3.09/3.13	c 10211340 propagations
3.09/3.13	c 13.4% variables used
3.09/3.13	c 3.1 seconds in library
3.09/3.13	c 3.3 megaprops/second
3.09/3.13	c 1 simplifications
3.09/3.13	c 0 reductions
3.09/3.13	c 0.1 MB recycled
3.09/3.13	c 38.4 MB maximally allocated
3.09/3.13	c 3.1 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-1717975-1240632301/watcher-1717975-1240632301 -o /tmp/evaluation-result-1717975-1240632301/solver-1717975-1240632301 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/picosat HOME/instance-1717975-1240632301.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: 1.18 1.61 1.41 2/64 30452
/proc/meminfo: memFree=1414440/2055920 swapFree=4192812/4192956
[pid=30452] ppid=30450 vsize=16700 CPUtime=0
/proc/30452/stat : 30452 (picosat) R 30450 30452 29209 0 -1 4194304 613 0 0 0 0 0 0 0 18 0 1 0 91256237 17100800 598 1992294400 134512640 135137933 4294956224 18446744073709551615 134683695 0 0 4096 0 0 0 0 17 0 0 0
/proc/30452/statm: 4175 599 53 152 0 4021 0

[startup+0.0111201 s]
/proc/loadavg: 1.18 1.61 1.41 2/64 30452
/proc/meminfo: memFree=1414440/2055920 swapFree=4192812/4192956
[pid=30452] ppid=30450 vsize=16956 CPUtime=0
/proc/30452/stat : 30452 (picosat) R 30450 30452 29209 0 -1 4194304 1286 0 0 0 0 0 0 0 18 0 1 0 91256237 17362944 1271 1992294400 134512640 135137933 4294956224 18446744073709551615 134532287 0 0 4096 0 0 0 0 17 0 0 0
/proc/30452/statm: 4239 1273 53 152 0 4085 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 16956

[startup+0.101128 s]
/proc/loadavg: 1.18 1.61 1.41 2/64 30452
/proc/meminfo: memFree=1414440/2055920 swapFree=4192812/4192956
[pid=30452] ppid=30450 vsize=22100 CPUtime=0.09
/proc/30452/stat : 30452 (picosat) R 30450 30452 29209 0 -1 4194304 5128 0 0 0 8 1 0 0 18 0 1 0 91256237 22630400 5113 1992294400 134512640 135137933 4294956224 18446744073709551615 134668310 0 0 4096 0 0 0 0 17 0 0 0
/proc/30452/statm: 5525 5113 56 152 0 5371 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 22100

[startup+0.301148 s]
/proc/loadavg: 1.18 1.61 1.41 2/64 30452
/proc/meminfo: memFree=1414440/2055920 swapFree=4192812/4192956
[pid=30452] ppid=30450 vsize=32480 CPUtime=0.29
/proc/30452/stat : 30452 (picosat) R 30450 30452 29209 0 -1 4194304 7564 0 0 0 26 3 0 0 20 0 1 0 91256237 33259520 7549 1992294400 134512640 135137933 4294956224 18446744073709551615 134668310 0 0 4096 0 0 0 0 17 0 0 0
/proc/30452/statm: 8120 7549 56 152 0 7966 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 32480

[startup+0.701188 s]
/proc/loadavg: 1.18 1.61 1.41 2/64 30452
/proc/meminfo: memFree=1414440/2055920 swapFree=4192812/4192956
[pid=30452] ppid=30450 vsize=44428 CPUtime=0.69
/proc/30452/stat : 30452 (picosat) R 30450 30452 29209 0 -1 4194304 10268 0 0 0 65 4 0 0 24 0 1 0 91256237 45494272 10253 1992294400 134512640 135137933 4294956224 18446744073709551615 134559969 0 0 4096 0 0 0 0 17 0 0 0
/proc/30452/statm: 11107 10253 61 152 0 10953 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 44428

[startup+1.50127 s]
/proc/loadavg: 1.18 1.61 1.41 2/65 30453
/proc/meminfo: memFree=1373536/2055920 swapFree=4192812/4192956
[pid=30452] ppid=30450 vsize=44556 CPUtime=1.49
/proc/30452/stat : 30452 (picosat) R 30450 30452 29209 0 -1 4194304 10297 0 0 0 145 4 0 0 25 0 1 0 91256237 45625344 10282 1992294400 134512640 135137933 4294956224 18446744073709551615 134527773 0 0 4096 0 0 0 0 17 0 0 0
/proc/30452/statm: 11139 10282 61 152 0 10985 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 44556

[startup+3.10143 s]
/proc/loadavg: 1.16 1.60 1.41 2/65 30453
/proc/meminfo: memFree=1373152/2055920 swapFree=4192812/4192956
[pid=30452] ppid=30450 vsize=40856 CPUtime=3.09
/proc/30452/stat : 30452 (picosat) R 30450 30452 29209 0 -1 4194304 10414 0 0 0 305 4 0 0 25 0 1 0 91256237 41836544 9864 1992294400 134512640 135137933 4294956224 18446744073709551615 134658841 0 0 4096 0 0 0 0 17 0 0 0
/proc/30452/statm: 10214 9864 69 152 0 10060 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 40856

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

Child status: 20
Real time (s): 3.13263
CPU time (s): 3.13152
CPU user time (s): 3.07753
CPU system time (s): 0.053991
CPU usage (%): 99.9647
Max. virtual memory (cumulated for all children) (KiB): 44956

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.07753
system time used= 0.053991
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 10416
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= 2
involuntary context switches= 6

runsolver used 0.002999 second user time and 0.017997 second system time

The end

Launcher Data 

Begin job on node70 at 2009-04-25 06:05:02
IDJOB=1717975
IDBENCH=20463
IDSOLVER=506
FILE ID=node70/1717975-1240632301
PBS_JOBID= 9186349
Free space on /tmp= 66320 MiB

SOLVER NAME= picosat 913
BENCH NAME= SAT07/industrial/babic/hsatv17/hsat_vc11803.cnf
COMMAND LINE= HOME/picosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1717975-1240632301/watcher-1717975-1240632301 -o /tmp/evaluation-result-1717975-1240632301/solver-1717975-1240632301 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/picosat HOME/instance-1717975-1240632301.cnf

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

MD5SUM BENCH= 6c6fd606fd41d7205b07602118ad74a0
RANDOM SEED=264519479

node70.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		: 3000.213
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		: 3000.213
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:       1414856 kB
Buffers:         55960 kB
Cached:         491228 kB
SwapCached:        144 kB
Active:         136444 kB
Inactive:       424844 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1414856 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:           16452 kB
Writeback:           0 kB
Mapped:          23704 kB
Slab:            65748 kB
Committed_AS:   242228 kB
PageTables:       1408 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= 66320 MiB
End job on node70 at 2009-04-25 06:05:05