Trace number 1736997

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 0.477926 0.478903

General information on the benchmark

NameCRAFTED/parity-games/
instance_n4_i5_pp.cnf
MD5SUMc15885aa7570af76db584f0c4936c8d8
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.280956
Satisfiable
(Un)Satisfiability was proved
Number of variables1960
Number of clauses11270
Sum of the clauses size35662
Maximum clause length12
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 22945
Number of clauses of size 34500
Number of clauses of size 42881
Number of clauses of size 5940
Number of clauses of size over 54

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-1736997-1240814222.cnf
0.00/0.00	c parsed header 'p cnf 1960 11270'
0.00/0.02	c initialized 1960 variables
0.00/0.02	c found 11270 non trivial clauses
0.00/0.02	c
0.00/0.02	c random number generator seed 0
0.00/0.02	c 
0.00/0.02	c  seconds     variables   original    learned     agility
0.00/0.02	c         level        used      conflicts    limit          MB
0.00/0.02	c 
0.00/0.02	c s   0.0   0.0  1875   9.2  7485    60     0     0   0.0   0.4 
0.00/0.02	c 
0.00/0.02	c initial reduction limit 4162 clauses
0.00/0.02	c 
0.00/0.02	c +   0.0  21.1  1875  38.8  7485   160    96  4578  16.1   0.4 
0.00/0.02	c R   0.0  21.1  1875  38.9  7485   161    97  4578  16.5   0.4 
0.00/0.03	c +   0.0  25.0  1875  57.9  7485   310   244  5035  16.7   0.5 
0.00/0.04	c R   0.0  23.7  1875  63.9  7485   462   396  5035  20.4   0.5 
0.00/0.05	c +   0.1  23.0  1875  65.9  7485   535   469  5538  15.9   0.5 
0.00/0.07	c +   0.1  20.1  1875  70.7  7485   872   802  6091  20.7   0.5 
0.07/0.09	c R   0.1  20.2  1874  71.3  7485  1077  1003  6091  20.6   0.5 
0.09/0.11	c +   0.1  18.9  1874  72.4  7485  1377  1297  6700  17.9   0.5 
0.09/0.11	c R   0.1  18.9  1874  72.4  7485  1379  1299  6700  18.1   0.5 
0.09/0.13	c s   0.1  18.5  1873  72.7  7459  1502  1417  6700  18.0   0.5 
0.09/0.19	c +   0.2  17.0  1873  73.3  7459  2136  2049  7370  20.2   0.6 
0.19/0.20	c R   0.2  16.9  1873  73.3  7459  2182  2095  7370  21.1   0.6 
0.29/0.31	c +   0.3  15.5  1873  73.5  7459  3271  3176  8107  20.2   0.7 
0.39/0.41	c s   0.4  14.7  1845  73.9  7346  4122  2627  8107  18.7   0.6 
0.39/0.43	c R   0.4  14.6  1837  74.1  7346  4270  2765  8107  20.5   0.7 
0.39/0.47	c 0   0.5  14.1  1318  78.7  7346  4678  3140  8107  20.4   0.7 
0.39/0.47	c 
0.39/0.47	c  seconds     variables   original    learned     agility
0.39/0.47	c         level        used      conflicts    limit          MB
0.39/0.47	c 
0.39/0.47	s UNSATISFIABLE
0.39/0.47	c
0.39/0.47	c 11 iterations
0.39/0.47	c 21 restarts
0.39/0.47	c 61 failed literals
0.39/0.47	c 4678 conflicts
0.39/0.47	c 8344 decisions
0.39/0.47	c 642 fixed variables
0.39/0.47	c 62808 learned literals
0.39/0.47	c 35.5% deleted literals
0.39/0.47	c 1490702 propagations
0.39/0.47	c 78.7% variables used
0.39/0.47	c 0.5 seconds in library
0.39/0.47	c 3.1 megaprops/second
0.39/0.47	c 3 simplifications
0.39/0.47	c 0 reductions
0.39/0.47	c 0.1 MB recycled
0.39/0.47	c 0.8 MB maximally allocated
0.39/0.47	c 0.5 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-1736997-1240814222/watcher-1736997-1240814222 -o /tmp/evaluation-result-1736997-1240814222/solver-1736997-1240814222 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/picosat HOME/instance-1736997-1240814222.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: 0.92 0.98 0.99 3/64 31420
/proc/meminfo: memFree=1598224/2055920 swapFree=4180724/4192956
[pid=31420] ppid=31418 vsize=1044 CPUtime=0
/proc/31420/stat : 31420 (picosat) R 31418 31420 29930 0 -1 4194304 158 0 0 0 0 0 0 0 18 0 1 0 109455698 1069056 143 1992294400 134512640 135137933 4294956224 18446744073709551615 134683695 0 0 4096 0 0 0 0 17 1 0 0
/proc/31420/statm: 261 143 56 152 0 107 0

[startup+0.0809051 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 31420
/proc/meminfo: memFree=1598224/2055920 swapFree=4180724/4192956
[pid=31420] ppid=31418 vsize=1332 CPUtime=0.07
/proc/31420/stat : 31420 (picosat) R 31418 31420 29930 0 -1 4194304 233 0 0 0 7 0 0 0 18 0 1 0 109455698 1363968 218 1992294400 134512640 135137933 4294956224 18446744073709551615 134549074 0 0 4096 0 0 0 0 17 1 0 0
/proc/31420/statm: 333 218 69 152 0 179 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 1332

[startup+0.102908 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 31420
/proc/meminfo: memFree=1598224/2055920 swapFree=4180724/4192956
[pid=31420] ppid=31418 vsize=1332 CPUtime=0.09
/proc/31420/stat : 31420 (picosat) R 31418 31420 29930 0 -1 4194304 240 0 0 0 9 0 0 0 18 0 1 0 109455698 1363968 225 1992294400 134512640 135137933 4294956224 18446744073709551615 134668310 0 0 4096 0 0 0 0 17 1 0 0
/proc/31420/statm: 333 225 69 152 0 179 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1332

[startup+0.301931 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 31420
/proc/meminfo: memFree=1598224/2055920 swapFree=4180724/4192956
[pid=31420] ppid=31418 vsize=1476 CPUtime=0.29
/proc/31420/stat : 31420 (picosat) R 31418 31420 29930 0 -1 4194304 278 0 0 0 29 0 0 0 19 0 1 0 109455698 1511424 263 1992294400 134512640 135137933 4294956224 18446744073709551615 134668310 0 0 4096 0 0 0 0 17 1 0 0
/proc/31420/statm: 369 263 69 152 0 215 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1476

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

[startup+0.402942 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 31420
/proc/meminfo: memFree=1598224/2055920 swapFree=4180724/4192956
[pid=31420] ppid=31418 vsize=1608 CPUtime=0.39
/proc/31420/stat : 31420 (picosat) R 31418 31420 29930 0 -1 4194304 298 0 0 0 39 0 0 0 20 0 1 0 109455698 1646592 283 1992294400 134512640 135137933 4294956224 18446744073709551615 134527903 0 0 4096 0 0 0 0 17 1 0 0
/proc/31420/statm: 402 283 69 152 0 248 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 1608

Child status: 20
Real time (s): 0.478903
CPU time (s): 0.477926
CPU user time (s): 0.475927
CPU system time (s): 0.001999
CPU usage (%): 99.796
Max. virtual memory (cumulated for all children) (KiB): 1608

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.475927
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= 306
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= 1

runsolver used 0.002999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node23 at 2009-04-27 08:37:02
IDJOB=1736997
IDBENCH=71640
IDSOLVER=506
FILE ID=node23/1736997-1240814222
PBS_JOBID= 9187440
Free space on /tmp= 66320 MiB

SOLVER NAME= picosat 913
BENCH NAME= SAT09/CRAFTED/parity-games/instance_n4_i5_pp.cnf
COMMAND LINE= HOME/picosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1736997-1240814222/watcher-1736997-1240814222 -o /tmp/evaluation-result-1736997-1240814222/solver-1736997-1240814222 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/picosat HOME/instance-1736997-1240814222.cnf

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

MD5SUM BENCH= c15885aa7570af76db584f0c4936c8d8
RANDOM SEED=1841452424

node23.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		: 3000.238
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		: 3000.238
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:       1598640 kB
Buffers:         62032 kB
Cached:         336924 kB
SwapCached:       6256 kB
Active:         185132 kB
Inactive:       222484 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1598640 kB
SwapTotal:     4192956 kB
SwapFree:      4180724 kB
Dirty:             892 kB
Writeback:           0 kB
Mapped:          14124 kB
Slab:            35696 kB
Committed_AS:   503952 kB
PageTables:       1388 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 node23 at 2009-04-27 08:37:02