Trace number 1725625

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
HydraSAT-Flat 2009-03-22-FlatSAT 3.16152 3.16315

General information on the benchmark

Namecrafted/Medium/contest05/others/
QG7a-gensys-brn004.sat05-3669.reshuffled-07.cnf
MD5SUM51245c7b8edb32c4dbd94daf982c00d7
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.72974
Satisfiable
(Un)Satisfiability was proved
Number of variables2435
Number of clauses16016
Sum of the clauses size112873
Maximum clause length13
Minimum clause length1
Number of clauses of size 135
Number of clauses of size 2385
Number of clauses of size 32207
Number of clauses of size 4298
Number of clauses of size 5447
Number of clauses of size over 512644

Solver Data 

3.09/3.16	
3.09/3.16	c decisions : 63202
3.09/3.16	c conflicts : 29221
3.09/3.16	c Memory limit 1620 MiB
3.09/3.16	s SATISFIABLE
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Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1725625-1240705801/watcher-1725625-1240705801 -o /tmp/evaluation-result-1725625-1240705801/solver-1725625-1240705801 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/hydrasat-flat HOME/instance-1725625-1240705801.cnf -rs 596244454 -co memory_limit 1800 

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: 1.39 1.63 1.40 3/65 3349
/proc/meminfo: memFree=1566288/2055920 swapFree=4192952/4192956
[pid=3349] ppid=3347 vsize=1596 CPUtime=0
/proc/3349/stat : 3349 (hydrasat-flat) R 3347 3349 3223 0 -1 4194304 181 0 0 0 0 0 0 0 20 0 1 0 98609103 1634304 165 1992294400 134512640 135819388 4294956160 18446744073709551615 135210678 0 0 4096 1 0 0 0 17 1 0 0
/proc/3349/statm: 399 165 119 319 0 77 0

[startup+0.0985509 s]
/proc/loadavg: 1.39 1.63 1.40 3/65 3349
/proc/meminfo: memFree=1566288/2055920 swapFree=4192952/4192956
[pid=3349] ppid=3347 vsize=3464 CPUtime=0.09
/proc/3349/stat : 3349 (hydrasat-flat) R 3347 3349 3223 0 -1 4194304 671 0 0 0 9 0 0 0 20 0 1 0 98609103 3547136 655 1992294400 134512640 135819388 4294956160 18446744073709551615 134697495 0 0 4096 1 0 0 0 17 1 0 0
/proc/3349/statm: 866 655 127 319 0 544 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3464

[startup+0.101551 s]
/proc/loadavg: 1.39 1.63 1.40 3/65 3349
/proc/meminfo: memFree=1566288/2055920 swapFree=4192952/4192956
[pid=3349] ppid=3347 vsize=3464 CPUtime=0.09
/proc/3349/stat : 3349 (hydrasat-flat) R 3347 3349 3223 0 -1 4194304 671 0 0 0 9 0 0 0 20 0 1 0 98609103 3547136 655 1992294400 134512640 135819388 4294956160 18446744073709551615 134681591 0 0 4096 1 0 0 0 17 1 0 0
/proc/3349/statm: 866 655 127 319 0 544 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3464

[startup+0.301574 s]
/proc/loadavg: 1.39 1.63 1.40 3/65 3349
/proc/meminfo: memFree=1566288/2055920 swapFree=4192952/4192956
[pid=3349] ppid=3347 vsize=3932 CPUtime=0.29
/proc/3349/stat : 3349 (hydrasat-flat) R 3347 3349 3223 0 -1 4194304 793 0 0 0 29 0 0 0 22 0 1 0 98609103 4026368 776 1992294400 134512640 135819388 4294956160 18446744073709551615 135210678 0 0 4096 1 0 0 0 17 1 0 0
/proc/3349/statm: 983 776 147 319 0 661 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3932

[startup+0.701618 s]
/proc/loadavg: 1.39 1.63 1.40 3/65 3349
/proc/meminfo: memFree=1566288/2055920 swapFree=4192952/4192956
[pid=3349] ppid=3347 vsize=4196 CPUtime=0.69
/proc/3349/stat : 3349 (hydrasat-flat) R 3347 3349 3223 0 -1 4194304 855 0 0 0 69 0 0 0 25 0 1 0 98609103 4296704 838 1992294400 134512640 135819388 4294956160 18446744073709551615 134592839 0 0 4096 1 0 0 0 17 1 0 0
/proc/3349/statm: 1049 838 147 319 0 727 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4196

[startup+1.50171 s]
/proc/loadavg: 1.39 1.63 1.40 2/66 3350
/proc/meminfo: memFree=1563400/2055920 swapFree=4192952/4192956
[pid=3349] ppid=3347 vsize=4588 CPUtime=1.49
/proc/3349/stat : 3349 (hydrasat-flat) R 3347 3349 3223 0 -1 4194304 957 0 0 0 149 0 0 0 25 0 1 0 98609103 4698112 940 1992294400 134512640 135819388 4294956160 18446744073709551615 134618378 0 0 4096 1 0 0 0 17 1 0 0
/proc/3349/statm: 1147 940 147 319 0 825 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 4588

[startup+3.10188 s]
/proc/loadavg: 1.39 1.63 1.40 2/66 3350
/proc/meminfo: memFree=1562632/2055920 swapFree=4192952/4192956
[pid=3349] ppid=3347 vsize=5412 CPUtime=3.09
/proc/3349/stat : 3349 (hydrasat-flat) R 3347 3349 3223 0 -1 4194304 1156 0 0 0 309 0 0 0 25 0 1 0 98609103 5541888 1139 1992294400 134512640 135819388 4294956160 18446744073709551615 134668663 0 0 4096 1 0 0 0 17 1 0 0
/proc/3349/statm: 1353 1139 147 319 0 1031 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 5412

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

Child status: 10
Real time (s): 3.16315
CPU time (s): 3.16152
CPU user time (s): 3.15352
CPU system time (s): 0.007998
CPU usage (%): 99.9484
Max. virtual memory (cumulated for all children) (KiB): 5412

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.15352
system time used= 0.007998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1170
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= 4

runsolver used 0.007998 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node91 at 2009-04-26 02:30:01
IDJOB=1725625
IDBENCH=24594
IDSOLVER=519
FILE ID=node91/1725625-1240705801
PBS_JOBID= 9186817
Free space on /tmp= 66520 MiB

SOLVER NAME= HydraSAT-Flat 2009-03-22-Flat
BENCH NAME= SAT07/crafted/Medium/contest05/others/QG7a-gensys-brn004.sat05-3669.reshuffled-07.cnf
COMMAND LINE= DIR/hydrasat-flat BENCHNAME -rs RANDOMSEED -co memory_limit MEMLIMIT
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1725625-1240705801/watcher-1725625-1240705801 -o /tmp/evaluation-result-1725625-1240705801/solver-1725625-1240705801 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/hydrasat-flat HOME/instance-1725625-1240705801.cnf -rs 596244454 -co memory_limit 1800

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

MD5SUM BENCH= 51245c7b8edb32c4dbd94daf982c00d7
RANDOM SEED=596244454

node91.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		: 3000.241
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		: 3000.241
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:       1566768 kB
Buffers:         56060 kB
Cached:         340580 kB
SwapCached:          4 kB
Active:          97752 kB
Inactive:       313356 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1566768 kB
SwapTotal:     4192956 kB
SwapFree:      4192952 kB
Dirty:            2168 kB
Writeback:           0 kB
Mapped:          24240 kB
Slab:            63932 kB
Committed_AS:   257528 kB
PageTables:       1356 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66520 MiB
End job on node91 at 2009-04-26 02:30:04