Trace number 1719535

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 1.82672 1.82562

General information on the benchmark

Namecmu-bmc-barrel6.cnf
MD5SUMcc87f90bf08e13838e59f0f2639db121
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.108983
Satisfiable
(Un)Satisfiability was proved
Number of variables2306
Number of clauses8931
Sum of the clauses size24664
Maximum clause length217
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 22629
Number of clauses of size 36048
Number of clauses of size 4252
Number of clauses of size 50
Number of clauses of size over 52

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-1719535-1240647460.cnf
0.00/0.00	c parsed header 'p cnf 2306 8931'
0.00/0.01	c initialized 2306 variables
0.00/0.01	c found 8931 non trivial clauses
0.00/0.01	c
0.00/0.01	c random number generator seed 0
0.00/0.01	c 
0.00/0.01	c  seconds     variables   original    learned     agility
0.00/0.01	c         level        used      conflicts    limit          MB
0.00/0.01	c 
0.00/0.01	c s   0.0   0.0  1964  25.8  5756   498     0     0   0.0   0.4 
0.00/0.03	c 
0.00/0.03	c initial reduction limit 3151 clauses
0.00/0.03	c 
0.00/0.03	c +   0.0  36.7  1964  95.8  5756   598   100  3466  38.4   0.4 
0.00/0.03	c N   0.0  36.7  1964  95.8  5756   599   101  3466  38.4   0.4 
0.00/0.05	c +   0.1  29.5  1964  96.8  5756   748   250  3812  42.4   0.5 
0.00/0.07	c N   0.1  28.2  1964  98.0  5756   899   400  3812  38.9   0.5 
0.00/0.08	c +   0.1  27.2  1964  98.0  5756   973   474  4193  37.8   0.5 
0.10/0.13	c +   0.1  27.0  1964  99.0  5756  1310   807  4612  26.9   0.6 
0.10/0.18	c N   0.2  27.2  1964 100.0  5756  1702  1195  4612  31.0   0.7 
0.10/0.20	c +   0.2  27.7  1964 100.0  5756  1815  1306  5073  39.1   0.8 
0.19/0.29	c +   0.3  39.1  1964 100.0  5756  2572  2058  5580  36.8   1.0 
0.39/0.45	c N   0.5  36.9  1964 100.0  5756  3706  3179  5580  36.3   1.3 
0.39/0.45	c +   0.5  36.8  1964 100.0  5756  3707  3180  6138  34.8   1.3 
0.59/0.69	c +   0.7  34.9  1964 100.0  5756  5409  4876  6751  37.1   1.7 
1.00/1.03	c +   1.0  34.7  1964 100.0  5756  7962  4010  7426  31.6   1.2 
1.00/1.10	c N   1.1  34.3  1964 100.0  5756  8518  4564  7426  35.8   1.3 
1.20/1.28	c s   1.3  33.6  1950 100.0  5448  9823  1773  7426  34.7   0.7 
1.30/1.30	c N   1.3  33.5  1949 100.0  5448  9955  1900  7426  37.2   0.7 
1.30/1.34	c N   1.3  33.5  1949 100.0  5448 10255  2200  7426  27.0   0.8 
1.40/1.44	c N   1.4  35.3  1949 100.0  5448 11056  2999  7426  34.7   0.9 
1.50/1.52	c s   1.5  35.6  1949 100.0  5448 11670  3594  7426  35.8   1.0 
1.50/1.53	c +   1.5  35.5  1949 100.0  5448 11791  3715  8168  31.8   1.1 
1.50/1.53	c 
1.50/1.53	c  seconds     variables   original    learned     agility
1.50/1.53	c         level        used      conflicts    limit          MB
1.50/1.53	c 
1.60/1.68	c N   1.7  35.0  1935 100.0  5448 12932  4837  8168  31.9   1.2 
1.70/1.72	c N   1.7  34.8  1935 100.0  5448 13232  5136  8168  28.4   1.3 
1.80/1.82	c 0   1.8  34.4  1245 100.0  5448 13939  5828  8168  32.5   1.4 
1.80/1.82	c 
1.80/1.82	c  seconds     variables   original    learned     agility
1.80/1.82	c         level        used      conflicts    limit          MB
1.80/1.82	c 
1.80/1.82	s UNSATISFIABLE
1.80/1.82	c
1.80/1.82	c 7 iterations
1.80/1.82	c 4 restarts
1.80/1.82	c 249 failed literals
1.80/1.82	c 13939 conflicts
1.80/1.82	c 62132 decisions
1.80/1.82	c 1061 fixed variables
1.80/1.82	c 657425 learned literals
1.80/1.82	c 43.4% deleted literals
1.80/1.82	c 6040187 propagations
1.80/1.82	c 100.0% variables used
1.80/1.82	c 1.8 seconds in library
1.80/1.82	c 3.3 megaprops/second
1.80/1.82	c 3 simplifications
1.80/1.82	c 1 reductions
1.80/1.82	c 1.8 MB recycled
1.80/1.82	c 2.0 MB maximally allocated
1.80/1.82	c 1.8 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-1719535-1240647460/watcher-1719535-1240647460 -o /tmp/evaluation-result-1719535-1240647460/solver-1719535-1240647460 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/picosat HOME/instance-1719535-1240647460.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: 1.63 1.77 1.44 3/64 17686
/proc/meminfo: memFree=1750144/2055920 swapFree=4181364/4192956
[pid=17686] ppid=17684 vsize=1044 CPUtime=0
/proc/17686/stat : 17686 (picosat) R 17684 17686 17555 0 -1 4194304 172 0 0 0 0 0 0 0 18 0 1 0 92779419 1069056 157 1992294400 134512640 135137933 4294956240 18446744073709551615 134689438 0 0 4096 0 0 0 0 17 0 0 0
/proc/17686/statm: 261 158 56 152 0 107 0

[startup+0.097143 s]
/proc/loadavg: 1.63 1.77 1.44 3/64 17686
/proc/meminfo: memFree=1750144/2055920 swapFree=4181364/4192956
[pid=17686] ppid=17684 vsize=1308 CPUtime=0.09
/proc/17686/stat : 17686 (picosat) R 17684 17686 17555 0 -1 4194304 248 0 0 0 9 0 0 0 18 0 1 0 92779419 1339392 233 1992294400 134512640 135137933 4294956240 18446744073709551615 134548913 0 0 4096 0 0 0 0 17 0 0 0
/proc/17686/statm: 327 233 69 152 0 173 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1308

[startup+0.101141 s]
/proc/loadavg: 1.63 1.77 1.44 3/64 17686
/proc/meminfo: memFree=1750144/2055920 swapFree=4181364/4192956
[pid=17686] ppid=17684 vsize=1308 CPUtime=0.1
/proc/17686/stat : 17686 (picosat) R 17684 17686 17555 0 -1 4194304 249 0 0 0 10 0 0 0 18 0 1 0 92779419 1339392 234 1992294400 134512640 135137933 4294956240 18446744073709551615 134551624 0 0 4096 0 0 0 0 17 0 0 0
/proc/17686/statm: 327 234 69 152 0 173 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1308

[startup+0.301084 s]
/proc/loadavg: 1.63 1.77 1.44 3/64 17686
/proc/meminfo: memFree=1750144/2055920 swapFree=4181364/4192956
[pid=17686] ppid=17684 vsize=1836 CPUtime=0.29
/proc/17686/stat : 17686 (picosat) R 17684 17686 17555 0 -1 4194304 360 0 0 0 29 0 0 0 19 0 1 0 92779419 1880064 345 1992294400 134512640 135137933 4294956240 18446744073709551615 134552061 0 0 4096 0 0 0 0 17 0 0 0
/proc/17686/statm: 459 345 69 152 0 305 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1836

[startup+0.701972 s]
/proc/loadavg: 1.63 1.77 1.44 3/64 17686
/proc/meminfo: memFree=1750144/2055920 swapFree=4181364/4192956
[pid=17686] ppid=17684 vsize=2496 CPUtime=0.7
/proc/17686/stat : 17686 (picosat) R 17684 17686 17555 0 -1 4194304 537 0 0 0 70 0 0 0 23 0 1 0 92779419 2555904 522 1992294400 134512640 135137933 4294956240 18446744073709551615 134668310 0 0 4096 0 0 0 0 17 0 0 0
/proc/17686/statm: 624 522 69 152 0 470 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 2496

[startup+1.50174 s]
/proc/loadavg: 1.58 1.76 1.44 2/65 17687
/proc/meminfo: memFree=1747960/2055920 swapFree=4181364/4192956
[pid=17686] ppid=17684 vsize=2892 CPUtime=1.5
/proc/17686/stat : 17686 (picosat) R 17684 17686 17555 0 -1 4194304 638 0 0 0 150 0 0 0 25 0 1 0 92779419 2961408 623 1992294400 134512640 135137933 4294956240 18446744073709551615 134548908 0 0 4096 0 0 0 0 17 0 0 0
/proc/17686/statm: 723 623 69 152 0 569 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 2892

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

[startup+1.70169 s]
/proc/loadavg: 1.58 1.76 1.44 2/65 17687
/proc/meminfo: memFree=1747960/2055920 swapFree=4181364/4192956
[pid=17686] ppid=17684 vsize=2892 CPUtime=1.7
/proc/17686/stat : 17686 (picosat) R 17684 17686 17555 0 -1 4194304 638 0 0 0 170 0 0 0 25 0 1 0 92779419 2961408 623 1992294400 134512640 135137933 4294956240 18446744073709551615 134554640 0 0 4096 0 0 0 0 17 0 0 0
/proc/17686/statm: 723 623 69 152 0 569 0
Current children cumulated CPU time (s) 1.7
Current children cumulated vsize (KiB) 2892

[startup+1.80166 s]
/proc/loadavg: 1.58 1.76 1.44 2/65 17687
/proc/meminfo: memFree=1747960/2055920 swapFree=4181364/4192956
[pid=17686] ppid=17684 vsize=2892 CPUtime=1.8
/proc/17686/stat : 17686 (picosat) R 17684 17686 17555 0 -1 4194304 638 0 0 0 180 0 0 0 25 0 1 0 92779419 2961408 623 1992294400 134512640 135137933 4294956240 18446744073709551615 134548784 0 0 4096 0 0 0 0 17 0 0 0
/proc/17686/statm: 723 623 69 152 0 569 0
Current children cumulated CPU time (s) 1.8
Current children cumulated vsize (KiB) 2892

Child status: 20
Real time (s): 1.82562
CPU time (s): 1.82672
CPU user time (s): 1.82372
CPU system time (s): 0.002999
CPU usage (%): 100.06
Max. virtual memory (cumulated for all children) (KiB): 2892

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.82372
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 640
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 0.005999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node16 at 2009-04-25 10:17:40
IDJOB=1719535
IDBENCH=69564
IDSOLVER=506
FILE ID=node16/1719535-1240647460
PBS_JOBID= 9186479
Free space on /tmp= 66320 MiB

SOLVER NAME= picosat 913
BENCH NAME= SAT_RACE08/cnf/cmu-bmc-barrel6.cnf
COMMAND LINE= HOME/picosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1719535-1240647460/watcher-1719535-1240647460 -o /tmp/evaluation-result-1719535-1240647460/solver-1719535-1240647460 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/picosat HOME/instance-1719535-1240647460.cnf

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

MD5SUM BENCH= cc87f90bf08e13838e59f0f2639db121
RANDOM SEED=712736290

node16.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		: 3000.234
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		: 3000.234
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:       1750624 kB
Buffers:         33264 kB
Cached:         218952 kB
SwapCached:       6388 kB
Active:          29460 kB
Inactive:       231652 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1750624 kB
SwapTotal:     4192956 kB
SwapFree:      4181364 kB
Dirty:            1256 kB
Writeback:           0 kB
Mapped:          13572 kB
Slab:            30188 kB
Committed_AS:   316576 kB
PageTables:       1436 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 node16 at 2009-04-25 10:17:42