Trace number 1784543

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
MiniSat 2.1 (Sat-race'08 Edition)UNSAT 0.283956 0.284337

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 benchmark0.283956
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 WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.01	c |  Number of variables:          1960                                         |
0.00/0.01	c |  Number of clauses:           11270                                         |
0.00/0.01	c |  Parse time:                   0.01 s                                       |
0.00/0.04	c |  Simplification time:          0.03 s                                       |
0.00/0.04	c |                                                                             |
0.00/0.04	c ============================[ Search Statistics ]==============================
0.00/0.04	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.04	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.00/0.04	c ===============================================================================
0.00/0.04	c |       100 |    1111     7777    26174 |     2851      100      9 |  4.082 % |
0.00/0.05	c |       250 |    1111     7777    26174 |     3136      250     11 |  4.082 % |
0.00/0.06	c |       475 |    1111     7777    26174 |     3450      475     11 |  4.082 % |
0.00/0.08	c |       812 |    1111     7777    26174 |     3795      812     12 |  4.082 % |
0.09/0.10	c |      1318 |    1111     7777    26174 |     4174     1318     13 |  4.082 % |
0.09/0.14	c |      2077 |    1110     7756    26097 |     4592     2076     13 |  4.133 % |
0.19/0.21	c |      3216 |    1110     7756    26097 |     5051     3215     13 |  4.133 % |
0.19/0.28	c ===============================================================================
0.19/0.28	c restarts              : 22
0.19/0.28	c conflicts             : 4179           (14821 /sec)
0.19/0.28	c decisions             : 7347           (26057 /sec)
0.19/0.28	c propagations          : 704146         (2497352 /sec)
0.19/0.28	c conflict literals     : 51839          (41.19 % deleted)
0.19/0.28	c Memory used           : 8.00 MB
0.19/0.28	c CPU time              : 0.281957 s
0.19/0.28	c 
0.19/0.28	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-1784543-1241948823/watcher-1784543-1241948823 -o /tmp/evaluation-result-1784543-1241948823/solver-1784543-1241948823 -C 5000 -W 6000 -M 1800 HOME/minisat HOME/instance-1784543-1241948823.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 6000 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: 0.99 0.97 0.99 2/64 30393
/proc/meminfo: memFree=1589360/2055920 swapFree=4164048/4192956
[pid=30393] ppid=30391 vsize=7748 CPUtime=0
/proc/30393/stat : 30393 (minisat) R 30391 30393 29372 0 -1 4194304 254 0 0 0 0 0 0 0 18 0 1 0 222910299 7933952 238 1992294400 4194304 5092341 548682068848 18446744073709551615 4515195 0 0 4096 3 0 0 0 17 1 0 0
/proc/30393/statm: 1937 238 63 219 0 1715 0

[startup+0.092835 s]
/proc/loadavg: 0.99 0.97 0.99 2/64 30393
/proc/meminfo: memFree=1589360/2055920 swapFree=4164048/4192956
[pid=30393] ppid=30391 vsize=8188 CPUtime=0.09
/proc/30393/stat : 30393 (minisat) R 30391 30393 29372 0 -1 4194304 528 0 0 0 9 0 0 0 18 0 1 0 222910299 8384512 435 1992294400 4194304 5092341 548682068848 18446744073709551615 4248108 0 0 4096 3 0 0 0 17 1 0 0
/proc/30393/statm: 2047 435 100 219 0 1825 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8188

[startup+0.101835 s]
/proc/loadavg: 0.99 0.97 0.99 2/64 30393
/proc/meminfo: memFree=1589360/2055920 swapFree=4164048/4192956
[pid=30393] ppid=30391 vsize=8188 CPUtime=0.09
/proc/30393/stat : 30393 (minisat) R 30391 30393 29372 0 -1 4194304 531 0 0 0 9 0 0 0 18 0 1 0 222910299 8384512 438 1992294400 4194304 5092341 548682068848 18446744073709551615 4240648 0 0 4096 3 0 0 0 17 1 0 0
/proc/30393/statm: 2047 438 100 219 0 1825 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8188

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

[startup+0.201844 s]
/proc/loadavg: 0.99 0.97 0.99 2/64 30393
/proc/meminfo: memFree=1589360/2055920 swapFree=4164048/4192956
[pid=30393] ppid=30391 vsize=8188 CPUtime=0.19
/proc/30393/stat : 30393 (minisat) R 30391 30393 29372 0 -1 4194304 557 0 0 0 19 0 0 0 18 0 1 0 222910299 8384512 464 1992294400 4194304 5092341 548682068848 18446744073709551615 4240648 0 0 4096 3 0 0 0 17 1 0 0
/proc/30393/statm: 2047 464 101 219 0 1825 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 8188

Child status: 20
Real time (s): 0.284337
CPU time (s): 0.283956
CPU user time (s): 0.281957
CPU system time (s): 0.001999
CPU usage (%): 99.866
Max. virtual memory (cumulated for all children) (KiB): 8188

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.281957
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= 583
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= 0

runsolver used 0.002999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node50 at 2009-05-10 11:47:03
IDJOB=1784543
IDBENCH=71640
IDSOLVER=608
FILE ID=node50/1784543-1241948823
PBS_JOBID= 9265044
Free space on /tmp= 66368 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT09/CRAFTED/parity-games/instance_n4_i5_pp.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1784543-1241948823/watcher-1784543-1241948823 -o /tmp/evaluation-result-1784543-1241948823/solver-1784543-1241948823 -C 5000 -W 6000 -M 1800  HOME/minisat HOME/instance-1784543-1241948823.cnf

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= c15885aa7570af76db584f0c4936c8d8
RANDOM SEED=533308983

node50.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		: 3000.216
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		: 3000.216
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:       1589840 kB
Buffers:         54688 kB
Cached:         339020 kB
SwapCached:      23676 kB
Active:         252664 kB
Inactive:       166676 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1589840 kB
SwapTotal:     4192956 kB
SwapFree:      4164048 kB
Dirty:            1356 kB
Writeback:           0 kB
Mapped:          13796 kB
Slab:            32660 kB
Committed_AS:   684736 kB
PageTables:       1448 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= 66368 MiB
End job on node50 at 2009-05-10 11:47:03