Trace number 1737027

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
VARSAT-random 2009-03-22UNSAT 0.910861 0.911355

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 ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.00	c |  Number of variables:  1960                                                 |
0.00/0.00	c |  Number of clauses:    11270                                                |
0.00/0.01	c |  Parsing time:         0.01         s                                       |
0.00/0.01	c |  Timeout:              43200 s
0.00/0.01	c |  Random Seed:          440833684.000000
0.00/0.01	c |  Heuristic:            EMSP-G, threshold 0.750                              |
0.00/0.01	c |  Branching Rule:       default (solution-guided)                            |
0.00/0.01	c |  Learned clauses in surveys?  Using NO learned clauses.                     |
0.00/0.01	c |                                                                             |
0.00/0.05	c ============================[ Search Statistics ]==============================
0.00/0.05	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.05	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.00/0.05	c ===============================================================================
0.00/0.05	c |         0 |    1111     7777    26174 |     2592        0    nan |  0.000 % |
0.09/0.10	c |       101 |    1111     7777    26174 |     2851      101      7 |  4.082 % |
0.09/0.17	c |       252 |    1111     7777    26174 |     3136      252     11 |  4.082 % |
0.19/0.24	c |       480 |    1111     7777    26174 |     3450      480     12 |  4.082 % |
0.29/0.32	c |       817 |    1111     7777    26174 |     3795      817     13 |  4.082 % |
0.39/0.42	c |      1323 |    1111     7777    26174 |     4174     1323     14 |  4.082 % |
0.49/0.56	c |      2083 |    1111     7777    26174 |     4592     2083     15 |  4.082 % |
0.69/0.72	c |      3222 |    1111     7777    26174 |     5051     3222     16 |  4.082 % |
0.89/0.91	c ===============================================================================
0.89/0.91	c surveys--CPU time (sec)   : 0.4719         (52.15 % of total)
0.89/0.91	c surveys--attempted        : 48             (102 /sec)
0.89/0.91	c surveys--converged        : 48             (100.00 % successful)
0.89/0.91	c restarts              : 8
0.89/0.91	c conflicts             : 4367           (10087 /sec)
0.89/0.91	c decisions             : 7694           (1.49 % random) (17772 /sec)
0.89/0.91	c propagations          : 750941         (1734547 /sec)
0.89/0.91	c conflict literals     : 66070          (34.12 % deleted)
0.89/0.91	c Memory used           : 4.50 MB
0.89/0.91	c Total CPU time (sec)      : 0.9049      
0.89/0.91	c 
0.89/0.91	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-1737027-1240814270/watcher-1737027-1240814270 -o /tmp/evaluation-result-1737027-1240814270/solver-1737027-1240814270 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/varsat-random_static -seed=440833684 HOME/instance-1737027-1240814270.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: 1.36 1.58 1.34 2/65 12298
/proc/meminfo: memFree=1680344/2055920 swapFree=4192952/4192956
[pid=12298] ppid=12296 vsize=2868 CPUtime=0
/proc/12298/stat : 12298 (varsat-random_s) R 12296 12298 11670 0 -1 4194304 345 0 0 0 0 0 0 0 18 0 1 0 109456165 2936832 330 1992294400 4194304 5102416 548682068784 18446744073709551615 4491479 0 0 4096 3 0 0 0 17 1 0 0
/proc/12298/statm: 717 332 88 221 0 493 0

[startup+0.082879 s]
/proc/loadavg: 1.36 1.58 1.34 2/65 12298
/proc/meminfo: memFree=1680344/2055920 swapFree=4192952/4192956
[pid=12298] ppid=12296 vsize=4608 CPUtime=0.07
/proc/12298/stat : 12298 (varsat-random_s) R 12296 12298 11670 0 -1 4194304 860 0 0 0 7 0 0 0 18 0 1 0 109456165 4718592 781 1992294400 4194304 5102416 548682068784 18446744073709551615 4220627 0 0 4096 3 0 0 0 17 1 0 0
/proc/12298/statm: 1152 781 102 221 0 928 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 4608

[startup+0.101881 s]
/proc/loadavg: 1.36 1.58 1.34 2/65 12298
/proc/meminfo: memFree=1680344/2055920 swapFree=4192952/4192956
[pid=12298] ppid=12296 vsize=4608 CPUtime=0.09
/proc/12298/stat : 12298 (varsat-random_s) R 12296 12298 11670 0 -1 4194304 860 0 0 0 9 0 0 0 18 0 1 0 109456165 4718592 781 1992294400 4194304 5102416 548682068784 18446744073709551615 4220614 0 0 4096 3 0 0 0 17 1 0 0
/proc/12298/statm: 1152 781 102 221 0 928 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4608

[startup+0.301905 s]
/proc/loadavg: 1.36 1.58 1.34 2/65 12298
/proc/meminfo: memFree=1680344/2055920 swapFree=4192952/4192956
[pid=12298] ppid=12296 vsize=4608 CPUtime=0.29
/proc/12298/stat : 12298 (varsat-random_s) R 12296 12298 11670 0 -1 4194304 870 0 0 0 29 0 0 0 20 0 1 0 109456165 4718592 791 1992294400 4194304 5102416 548682068784 18446744073709551615 4220643 0 0 4096 3 0 0 0 17 1 0 0
/proc/12298/statm: 1152 791 112 221 0 928 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4608

[startup+0.70195 s]
/proc/loadavg: 1.36 1.58 1.34 2/65 12298
/proc/meminfo: memFree=1680344/2055920 swapFree=4192952/4192956
[pid=12298] ppid=12296 vsize=4608 CPUtime=0.69
/proc/12298/stat : 12298 (varsat-random_s) R 12296 12298 11670 0 -1 4194304 870 0 0 0 69 0 0 0 24 0 1 0 109456165 4718592 791 1992294400 4194304 5102416 548682068784 18446744073709551615 4249567 0 0 4096 3 0 0 0 17 1 0 0
/proc/12298/statm: 1152 791 112 221 0 928 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4608

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

[startup+0.901972 s]
/proc/loadavg: 1.36 1.58 1.34 2/65 12298
/proc/meminfo: memFree=1680344/2055920 swapFree=4192952/4192956
[pid=12298] ppid=12296 vsize=4608 CPUtime=0.89
/proc/12298/stat : 12298 (varsat-random_s) R 12296 12298 11670 0 -1 4194304 877 0 0 0 89 0 0 0 25 0 1 0 109456165 4718592 798 1992294400 4194304 5102416 548682068784 18446744073709551615 4249520 0 0 4096 3 0 0 0 17 1 0 0
/proc/12298/statm: 1152 798 112 221 0 928 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 4608

Child status: 20
Real time (s): 0.911355
CPU time (s): 0.910861
CPU user time (s): 0.904862
CPU system time (s): 0.005999
CPU usage (%): 99.9458
Max. virtual memory (cumulated for all children) (KiB): 4608

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.904862
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 882
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 0.003999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node88 at 2009-04-27 08:37:50
IDJOB=1737027
IDBENCH=71640
IDSOLVER=539
FILE ID=node88/1737027-1240814270
PBS_JOBID= 9187469
Free space on /tmp= 66560 MiB

SOLVER NAME= VARSAT-random 2009-03-22
BENCH NAME= SAT09/CRAFTED/parity-games/instance_n4_i5_pp.cnf
COMMAND LINE= HOME/varsat-random_static -seed=RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1737027-1240814270/watcher-1737027-1240814270 -o /tmp/evaluation-result-1737027-1240814270/solver-1737027-1240814270 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/varsat-random_static -seed=440833684 HOME/instance-1737027-1240814270.cnf

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

MD5SUM BENCH= c15885aa7570af76db584f0c4936c8d8
RANDOM SEED=440833684

node88.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		: 3000.229
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		: 3000.229
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:       1680760 kB
Buffers:         54520 kB
Cached:         235224 kB
SwapCached:          4 kB
Active:         133592 kB
Inactive:       170448 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1680760 kB
SwapTotal:     4192956 kB
SwapFree:      4192952 kB
Dirty:            1212 kB
Writeback:           0 kB
Mapped:          24048 kB
Slab:            56996 kB
Committed_AS:   311684 kB
PageTables:       1444 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= 66560 MiB
End job on node88 at 2009-04-27 08:37:51