Trace number 427103

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, and are wall clock time (not CPU 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
MiraXT v3UNSAT 6.20606 3.16701

General information on the benchmark

Namerandom/2+p/p0.8/v1665/
unif2p-p0.8-v1665-c5178-S1104990816-03-UNSAT.cnf
MD5SUMa72030f9b5b8bc8b27629e6299239dd6
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.2808
Satisfiable
(Un)Satisfiability was proved
Number of variables1665
Number of clauses5177
Sum of the clauses size14496
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 21035
Number of clauses of size 34142
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.00	c Starting MiraXTv3...
6.13/3.16	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.4 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node21/watcher-427103-1179025783 -o ROOT/results/node21/solver-427103-1179025783 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/427103-1179025783/MiraXTv3_dyn /tmp/evaluation/427103-1179025783/instance-427103-1179025783.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): 7500 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: 1.81 1.95 1.98 3/77 15556
/proc/meminfo: memFree=1553280/2055920 swapFree=4156344/4192956
[pid=15556] ppid=15554 vsize=3920 CPUtime=0
/proc/15556/stat : 15556 (MiraXTv3_dyn) R 15554 15556 15260 0 -1 4194304 331 0 0 0 0 0 0 0 18 0 1 0 350495659 4014080 307 18446744073709551615 134512640 134597700 4294956656 18446744073709551615 8877005 0 0 4096 0 0 0 0 17 1 0 0
/proc/15556/statm: 980 309 205 20 0 338 0

[startup+0.049965 s]
/proc/loadavg: 1.81 1.95 1.98 3/77 15556
/proc/meminfo: memFree=1553280/2055920 swapFree=4156344/4192956
[pid=15556] ppid=15554 vsize=7632 CPUtime=0.06
/proc/15556/stat : 15556 (MiraXTv3_dyn) S 15554 15556 15260 0 -1 4194304 762 0 0 0 6 0 0 0 18 0 3 0 350495659 7815168 737 18446744073709551615 134512640 134597700 4294956656 18446744073709551615 4294960144 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/15556/statm: 1908 737 218 20 0 1266 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 7632

[startup+0.101969 s]
/proc/loadavg: 1.81 1.95 1.98 3/77 15556
/proc/meminfo: memFree=1553280/2055920 swapFree=4156344/4192956
[pid=15556] ppid=15554 vsize=7632 CPUtime=0.17
/proc/15556/stat : 15556 (MiraXTv3_dyn) S 15554 15556 15260 0 -1 4194304 829 0 0 0 17 0 0 0 18 0 3 0 350495659 7815168 804 18446744073709551615 134512640 134597700 4294956656 18446744073709551615 4294960144 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/15556/statm: 1908 804 218 20 0 1266 0
Current children cumulated CPU time (s) 0.17
Current children cumulated vsize (KiB) 7632

[startup+0.301994 s]
/proc/loadavg: 1.81 1.95 1.98 3/77 15556
/proc/meminfo: memFree=1553280/2055920 swapFree=4156344/4192956
[pid=15556] ppid=15554 vsize=8832 CPUtime=0.56
/proc/15556/stat : 15556 (MiraXTv3_dyn) S 15554 15556 15260 0 -1 4194304 1059 0 0 0 56 0 0 0 18 0 3 0 350495659 9043968 1034 18446744073709551615 134512640 134597700 4294956656 18446744073709551615 4294960144 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/15556/statm: 2208 1034 218 20 0 1566 0
Current children cumulated CPU time (s) 0.56
Current children cumulated vsize (KiB) 8832

[startup+0.701039 s]
/proc/loadavg: 1.81 1.95 1.98 3/77 15556
/proc/meminfo: memFree=1553280/2055920 swapFree=4156344/4192956
[pid=15556] ppid=15554 vsize=10636 CPUtime=1.36
/proc/15556/stat : 15556 (MiraXTv3_dyn) S 15554 15556 15260 0 -1 4194304 1515 0 0 0 136 0 0 0 18 0 3 0 350495659 10891264 1490 18446744073709551615 134512640 134597700 4294956656 18446744073709551615 4294960144 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/15556/statm: 2659 1490 218 20 0 2017 0
Current children cumulated CPU time (s) 1.36
Current children cumulated vsize (KiB) 10636

[startup+1.50113 s]
/proc/loadavg: 1.81 1.95 1.98 3/80 15559
/proc/meminfo: memFree=1546984/2055920 swapFree=4156344/4192956
[pid=15556] ppid=15554 vsize=14164 CPUtime=2.96
/proc/15556/stat : 15556 (MiraXTv3_dyn) S 15554 15556 15260 0 -1 4194304 2308 0 0 0 294 2 0 0 18 0 3 0 350495659 14503936 2283 18446744073709551615 134512640 134597700 4294956656 18446744073709551615 4294960144 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/15556/statm: 3541 2283 218 20 0 2899 0
[pid=15556/tid=15558] ppid=15554 vsize=14164 CPUtime=1.47
/proc/15556/task/15558/stat : 15558 (MiraXTv3_dyn) R 15554 15556 15260 0 -1 4194368 894 0 0 0 146 1 0 0 25 0 3 0 350495662 14503936 2283 18446744073709551615 134512640 134597700 4294956656 18446744073709551615 8873595 0 0 4096 0 0 0 0 -1 1 0 0
[pid=15556/tid=15559] ppid=15554 vsize=14164 CPUtime=1.46
/proc/15556/task/15559/stat : 15559 (MiraXTv3_dyn) R 15554 15556 15260 0 -1 4194368 947 0 0 0 146 0 0 0 25 0 3 0 350495662 14503936 2283 18446744073709551615 134512640 134597700 4294956656 18446744073709551615 134526463 0 0 4096 0 0 0 0 -1 0 0 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 14164

[startup+3.1023 s]
/proc/loadavg: 1.82 1.95 1.98 3/80 15559
/proc/meminfo: memFree=1542824/2055920 swapFree=4156344/4192956
[pid=15556] ppid=15554 vsize=18784 CPUtime=6.13
/proc/15556/stat : 15556 (MiraXTv3_dyn) S 15554 15556 15260 0 -1 4194304 3627 0 0 0 610 3 0 0 18 0 3 0 350495659 19234816 3602 18446744073709551615 134512640 134597700 4294956656 18446744073709551615 4294960144 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/15556/statm: 4696 3602 218 20 0 4054 0
[pid=15556/tid=15558] ppid=15554 vsize=18784 CPUtime=3.04
/proc/15556/task/15558/stat : 15558 (MiraXTv3_dyn) R 15554 15556 15260 0 -1 4194368 1513 0 0 0 303 1 0 0 17 0 3 0 350495662 19234816 3602 18446744073709551615 134512640 134597700 4294956656 18446744073709551615 134526707 0 0 4096 0 0 0 0 -1 1 0 0
[pid=15556/tid=15559] ppid=15554 vsize=18784 CPUtime=3.05
/proc/15556/task/15559/stat : 15559 (MiraXTv3_dyn) R 15554 15556 15260 0 -1 4194368 1647 0 0 0 304 1 0 0 25 0 3 0 350495662 19234816 3602 18446744073709551615 134512640 134597700 4294956656 18446744073709551615 134526373 0 0 4096 0 0 0 0 -1 0 0 0
Current children cumulated CPU time (s) 6.13
Current children cumulated vsize (KiB) 18784

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

Child status: 20
Real time (s): 3.16701
CPU time (s): 6.20606
CPU user time (s): 6.17106
CPU system time (s): 0.034994
CPU usage (%): 195.959
Max. virtual memory (cumulated for all children) (KiB): 18784

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.17106
system time used= 0.034994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3653
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= 39
involuntary context switches= 120

runsolver used 0.002999 second user time and 0.014997 second system time

The end

Launcher Data (download as text)

Begin job on node21 on Sun May 13 03:09:44 UTC 2007

IDJOB= 427103
IDBENCH= 20335
IDSOLVER= 196
FILE ID= node21/427103-1179025783

PBS_JOBID= 5252896

Free space on /tmp= 66526 MiB

SOLVER NAME= MiraXT v3
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1665/unif2p-p0.8-v1665-c5178-S1104990816-03-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/427103-1179025783/MiraXTv3_dyn /tmp/evaluation/427103-1179025783/instance-427103-1179025783.cnf
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node21/watcher-427103-1179025783 -o ROOT/results/node21/solver-427103-1179025783 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/427103-1179025783/MiraXTv3_dyn /tmp/evaluation/427103-1179025783/instance-427103-1179025783.cnf

META MD5SUM SOLVER= 2ad149617ed8d249d89b067eb44c33da
MD5SUM BENCH=  a72030f9b5b8bc8b27629e6299239dd6

RANDOM SEED= 932842503

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node21.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.232
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		: 3000.232
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:       1553624 kB
Buffers:         51208 kB
Cached:         358428 kB
SwapCached:      15772 kB
Active:         203436 kB
Inactive:       229912 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1553624 kB
SwapTotal:     4192956 kB
SwapFree:      4156344 kB
Dirty:            4124 kB
Writeback:           0 kB
Mapped:          30152 kB
Slab:            54452 kB
Committed_AS:  5219232 kB
PageTables:       1784 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= 66526 MiB

End job on node21 on Sun May 13 03:09:47 UTC 2007