Trace number 312210

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
tinisat 2007-02-08UNSAT 8.65468 8.65868

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 benchmark1.27281
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 Tinisat 0.22
0.00/0.00	c solving /tmp/evaluation/312210-1172583941/instance-312210-1172583941.cnf
0.00/0.00	c 1665 variables, 5177 clauses
8.59/8.65	s UNSATISFIABLE
8.59/8.65	c 41838 decisions, 30792 conflicts, 29 restarts
8.59/8.65	c solved in 8.65s

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node41/watcher-312210-1172583941 -o ROOT/results/node41/solver-312210-1172583941 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/312210-1172583941/tinisat /tmp/evaluation/312210-1172583941/instance-312210-1172583941.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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: 1.00 1.00 1.00 3/64 20177
/proc/meminfo: memFree=1811936/2055920 swapFree=4172320/4192956
[pid=20177] ppid=20175 vsize=716 CPUtime=0
/proc/20177/stat : 20177 (tinisat) R 20175 20177 19075 0 -1 4194304 99 0 0 0 0 0 0 0 18 0 1 0 278350007 733184 84 18446744073709551615 134512640 134966189 4294956704 18446744073709551615 134612771 0 0 4096 0 0 0 0 17 1 0 0
/proc/20177/statm: 179 84 48 110 0 66 0

[startup+0.107118 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 20177
/proc/meminfo: memFree=1811936/2055920 swapFree=4172320/4192956
[pid=20177] ppid=20175 vsize=1588 CPUtime=0.1
/proc/20177/stat : 20177 (tinisat) R 20175 20177 19075 0 -1 4194304 251 0 0 0 10 0 0 0 18 0 1 0 278350007 1626112 235 18446744073709551615 134512640 134966189 4294956704 18446744073709551615 134519843 0 0 4096 0 0 0 0 17 1 0 0
/proc/20177/statm: 397 235 52 110 0 284 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1588

[startup+0.516153 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 20177
/proc/meminfo: memFree=1811936/2055920 swapFree=4172320/4192956
[pid=20177] ppid=20175 vsize=2204 CPUtime=0.51
/proc/20177/stat : 20177 (tinisat) R 20175 20177 19075 0 -1 4194304 353 0 0 0 51 0 0 0 21 0 1 0 278350007 2256896 337 18446744073709551615 134512640 134966189 4294956704 18446744073709551615 134520011 0 0 4096 0 0 0 0 17 1 0 0
/proc/20177/statm: 551 337 52 110 0 438 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 2204

[startup+1.33623 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 20178
/proc/meminfo: memFree=1810200/2055920 swapFree=4172320/4192956
[pid=20177] ppid=20175 vsize=3564 CPUtime=1.33
/proc/20177/stat : 20177 (tinisat) R 20175 20177 19075 0 -1 4194304 529 0 0 0 133 0 0 0 25 0 1 0 278350007 3649536 513 18446744073709551615 134512640 134966189 4294956704 18446744073709551615 134518568 0 0 4096 0 0 0 0 17 1 0 0
/proc/20177/statm: 891 513 52 110 0 778 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 3564

[startup+2.97237 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 20178
/proc/meminfo: memFree=1809240/2055920 swapFree=4172320/4192956
[pid=20177] ppid=20175 vsize=3828 CPUtime=2.96
/proc/20177/stat : 20177 (tinisat) R 20175 20177 19075 0 -1 4194304 812 0 0 0 296 0 0 0 25 0 1 0 278350007 3919872 796 18446744073709551615 134512640 134966189 4294956704 18446744073709551615 134519905 0 0 4096 0 0 0 0 17 1 0 0
/proc/20177/statm: 957 796 52 110 0 844 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 3828

[startup+6.24865 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 20178
/proc/meminfo: memFree=1807584/2055920 swapFree=4172320/4192956
[pid=20177] ppid=20175 vsize=6556 CPUtime=6.23
/proc/20177/stat : 20177 (tinisat) R 20175 20177 19075 0 -1 4194304 1175 0 0 0 623 0 0 0 25 0 1 0 278350007 6713344 1159 18446744073709551615 134512640 134966189 4294956704 18446744073709551615 134519843 0 0 4096 0 0 0 0 17 1 0 0
/proc/20177/statm: 1639 1159 52 110 0 1526 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 6556

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

[startup+6.55568 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 20178
/proc/meminfo: memFree=1807584/2055920 swapFree=4172320/4192956
[pid=20177] ppid=20175 vsize=6556 CPUtime=6.54
/proc/20177/stat : 20177 (tinisat) R 20175 20177 19075 0 -1 4194304 1204 0 0 0 654 0 0 0 25 0 1 0 278350007 6713344 1188 18446744073709551615 134512640 134966189 4294956704 18446744073709551615 134515541 0 0 4096 0 0 0 0 17 1 0 0
/proc/20177/statm: 1639 1188 52 110 0 1526 0
Current children cumulated CPU time (s) 6.54
Current children cumulated vsize (KiB) 6556

[startup+7.37575 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 20178
/proc/meminfo: memFree=1807144/2055920 swapFree=4172320/4192956
[pid=20177] ppid=20175 vsize=6692 CPUtime=7.36
/proc/20177/stat : 20177 (tinisat) R 20175 20177 19075 0 -1 4194304 1281 0 0 0 736 0 0 0 25 0 1 0 278350007 6852608 1265 18446744073709551615 134512640 134966189 4294956704 18446744073709551615 134519936 0 0 4096 0 0 0 0 17 1 0 0
/proc/20177/statm: 1673 1265 52 110 0 1560 0
Current children cumulated CPU time (s) 7.36
Current children cumulated vsize (KiB) 6692

[startup+8.19682 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 20178
/proc/meminfo: memFree=1806696/2055920 swapFree=4172320/4192956
[pid=20177] ppid=20175 vsize=6692 CPUtime=8.18
/proc/20177/stat : 20177 (tinisat) R 20175 20177 19075 0 -1 4194304 1354 0 0 0 818 0 0 0 25 0 1 0 278350007 6852608 1338 18446744073709551615 134512640 134966189 4294956704 18446744073709551615 134519972 0 0 4096 0 0 0 0 17 1 0 0
/proc/20177/statm: 1673 1338 52 110 0 1560 0
Current children cumulated CPU time (s) 8.18
Current children cumulated vsize (KiB) 6692

[startup+8.60886 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 20178
/proc/meminfo: memFree=1806696/2055920 swapFree=4172320/4192956
[pid=20177] ppid=20175 vsize=6692 CPUtime=8.59
/proc/20177/stat : 20177 (tinisat) R 20175 20177 19075 0 -1 4194304 1384 0 0 0 859 0 0 0 25 0 1 0 278350007 6852608 1368 18446744073709551615 134512640 134966189 4294956704 18446744073709551615 134520000 0 0 4096 0 0 0 0 17 1 0 0
/proc/20177/statm: 1673 1368 52 110 0 1560 0
Current children cumulated CPU time (s) 8.59
Current children cumulated vsize (KiB) 6692

Child status: 20
Real time (s): 8.65868
CPU time (s): 8.65468
CPU user time (s): 8.64468
CPU system time (s): 0.009998
CPU usage (%): 99.9539
Max. virtual memory (cumulated for all children) (KiB): 6692

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 8.64468
system time used= 0.009998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1392
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= 8
involuntary context switches= 5

runsolver used 0.004999 second user time and 0.024996 second system time

The end

Launcher Data (download as text)

Begin job on node41 on Tue Feb 27 13:45:41 UTC 2007

IDJOB= 312210
IDBENCH= 20335
IDSOLVER= 100
FILE ID= node41/312210-1172583941

PBS_JOBID= 3971916

Free space on /tmp= 66560 MiB

SOLVER NAME= tinisat 2007-02-08
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/312210-1172583941/tinisat /tmp/evaluation/312210-1172583941/instance-312210-1172583941.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node41/watcher-312210-1172583941 -o ROOT/results/node41/solver-312210-1172583941 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/312210-1172583941/tinisat /tmp/evaluation/312210-1172583941/instance-312210-1172583941.cnf            

META MD5SUM SOLVER= 15788d06198cf45d0201cced774790cd
MD5SUM BENCH=  a72030f9b5b8bc8b27629e6299239dd6

RANDOM SEED= 691138697

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node41.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		: 3000.231
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		: 3000.231
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:       1812344 kB
Buffers:         33960 kB
Cached:         148552 kB
SwapCached:      14892 kB
Active:         117080 kB
Inactive:        87188 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1812344 kB
SwapTotal:     4192956 kB
SwapFree:      4172320 kB
Dirty:             596 kB
Writeback:           0 kB
Mapped:          15704 kB
Slab:            25268 kB
Committed_AS:   568164 kB
PageTables:       1476 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 node41 on Tue Feb 27 13:45:49 UTC 2007