Trace number 312377

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
saps 2007-02-08SAT 1.01484 1.01768

General information on the benchmark

Namerandom/2+p/p0.8/v1665/
unif2p-p0.8-v1665-c5178-S1939769766-11-SAT.cnf
MD5SUM6a3b3e57d22696582c0456812681e53c
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.060989
Satisfiable
(Un)Satisfiability was proved
Number of variables1664
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)

0.92/1.01	c 
0.92/1.01	c UBCSAT version 1.1.0rr
0.92/1.01	c 
0.92/1.01	c http://www.satlib.org/ubcsat
0.92/1.01	c 
0.92/1.01	c ubcsat -h for help
0.92/1.01	c 
0.92/1.01	c  -runs 1 
0.92/1.01	c  -cutoff 4294967295 
0.92/1.01	c  -timeout 0.000000 
0.92/1.01	c  -gtimeout 0.000000 
0.92/1.01	c  -noimprove 0 
0.92/1.01	c  -target 0 
0.92/1.01	c  -wtarget 0.000000 
0.92/1.01	c  -seed 543679496 
0.92/1.01	c  -solve 0 
0.92/1.01	c  -find,-numsol 0 
0.92/1.01	c  -findunique 0 
0.92/1.01	c  -srestart 0 
0.92/1.01	c  -prestart 0.000000 
0.92/1.01	c  -drestart 0 
0.92/1.01	c 
0.92/1.01	c  -alpha 1.300000 
0.92/1.01	c  -rho 0.800000 
0.92/1.01	c  -ps 0.050000 
0.92/1.01	c  -wp 0.010000 
0.92/1.01	c  -sapsthresh -0.100000 
0.92/1.01	c 
0.92/1.01	s SATISFIABLE
0.92/1.01	v  1 2 -3 4 5 6 -7 -8 -9 -10
0.92/1.01	v  11 12 13 14 -15 -16 17 18 -19 -20
0.92/1.01	v  -21 -22 -23 24 25 -26 27 -28 -29 -30
0.92/1.01	v  -31 32 33 34 -35 -36 37 38 -39 -40
0.92/1.01	v  41 42 43 -44 45 -46 47 48 49 -50
0.92/1.01	v  51 52 -53 -54 55 56 57 58 59 -60
0.92/1.01	v  -61 62 -63 64 -65 -66 -67 -68 69 -70
0.92/1.01	v  71 72 -73 74 75 76 77 -78 -79 80
0.92/1.01	v  -81 -82 -83 -84 -85 -86 87 88 -89 -90
0.92/1.01	v  91 92 -93 94 -95 96 -97 -98 -99 -100
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0.92/1.01	v  111 112 -113 114 -115 -116 -117 -118 119 -120
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0.92/1.01	v  -151 -152 -153 -154 155 -156 157 -158 -159 160
0.92/1.01	v  161 162 -163 164 -165 -166 167 168 169 170
0.92/1.01	v  171 -172 -173 174 -175 -176 177 -178 179 180
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0.92/1.01	v  251 -252 253 254 -255 256 257 -258 -259 260
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0.92/1.01	v  1661 -1662 -1663 -1664 -1665 0

Verifier Data (download as text)

OK

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node44/watcher-312377-1172587700 -o ROOT/results/node44/solver-312377-1172587700 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/312377-1172587700/saps /tmp/evaluation/312377-1172587700/instance-312377-1172587700.cnf 543679496 

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: 0.00 0.01 0.21 3/64 29899
/proc/meminfo: memFree=1884368/2055920 swapFree=4183252/4192956
[pid=29899] ppid=29897 vsize=5160 CPUtime=0
/proc/29899/stat : 29899 (saps) R 29897 29899 29221 0 -1 4194304 151 0 0 0 0 0 0 0 18 0 1 0 278765567 5283840 136 18446744073709551615 134512640 135167564 4294956704 18446744073709551615 134862047 0 0 4096 0 0 0 0 17 1 0 0
/proc/29899/statm: 1290 136 72 159 0 1129 0

[startup+0.106728 s]
/proc/loadavg: 0.00 0.01 0.21 3/64 29899
/proc/meminfo: memFree=1884368/2055920 swapFree=4183252/4192956
[pid=29899] ppid=29897 vsize=5156 CPUtime=0.1
/proc/29899/stat : 29899 (saps) R 29897 29899 29221 0 -1 4194304 234 0 0 0 10 0 0 0 18 0 1 0 278765567 5279744 218 18446744073709551615 134512640 135167564 4294956704 18446744073709551615 134715137 0 0 4096 0 0 0 0 17 1 0 0
/proc/29899/statm: 1289 218 77 159 0 1128 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 5156

[startup+0.514801 s]
/proc/loadavg: 0.00 0.01 0.21 3/64 29899
/proc/meminfo: memFree=1884368/2055920 swapFree=4183252/4192956
[pid=29899] ppid=29897 vsize=5156 CPUtime=0.51
/proc/29899/stat : 29899 (saps) R 29897 29899 29221 0 -1 4194304 234 0 0 0 51 0 0 0 22 0 1 0 278765567 5279744 218 18446744073709551615 134512640 135167564 4294956704 18446744073709551615 134714418 0 0 4096 0 0 0 0 17 1 0 0
/proc/29899/statm: 1289 218 77 159 0 1128 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 5156

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

[startup+0.820857 s]
/proc/loadavg: 0.00 0.01 0.21 3/64 29899
/proc/meminfo: memFree=1884368/2055920 swapFree=4183252/4192956
[pid=29899] ppid=29897 vsize=5156 CPUtime=0.81
/proc/29899/stat : 29899 (saps) R 29897 29899 29221 0 -1 4194304 234 0 0 0 81 0 0 0 25 0 1 0 278765567 5279744 218 18446744073709551615 134512640 135167564 4294956704 18446744073709551615 134549544 0 0 4096 0 0 0 0 17 1 0 0
/proc/29899/statm: 1289 218 77 159 0 1128 0
Current children cumulated CPU time (s) 0.81
Current children cumulated vsize (KiB) 5156

[startup+0.922875 s]
/proc/loadavg: 0.00 0.01 0.21 3/64 29899
/proc/meminfo: memFree=1884368/2055920 swapFree=4183252/4192956
[pid=29899] ppid=29897 vsize=5156 CPUtime=0.92
/proc/29899/stat : 29899 (saps) R 29897 29899 29221 0 -1 4194304 234 0 0 0 92 0 0 0 25 0 1 0 278765567 5279744 218 18446744073709551615 134512640 135167564 4294956704 18446744073709551615 134549641 0 0 4096 0 0 0 0 17 1 0 0
/proc/29899/statm: 1289 218 77 159 0 1128 0
Current children cumulated CPU time (s) 0.92
Current children cumulated vsize (KiB) 5156

Child status: 10
Real time (s): 1.01768
CPU time (s): 1.01484
CPU user time (s): 1.01384
CPU system time (s): 0.000999
CPU usage (%): 99.7208
Max. virtual memory (cumulated for all children) (KiB): 5156

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.01385
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 252
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= 12
involuntary context switches= 2

runsolver used 0.002999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node44 on Tue Feb 27 14:51:59 UTC 2007

IDJOB= 312377
IDBENCH= 20340
IDSOLVER= 103
FILE ID= node44/312377-1172587700

PBS_JOBID= 3971926

Free space on /tmp= 66553 MiB

SOLVER NAME= saps 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1665/unif2p-p0.8-v1665-c5178-S1939769766-11-SAT.cnf
COMMAND LINE= /tmp/evaluation/312377-1172587700/saps /tmp/evaluation/312377-1172587700/instance-312377-1172587700.cnf  543679496   
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node44/watcher-312377-1172587700 -o ROOT/results/node44/solver-312377-1172587700 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/312377-1172587700/saps /tmp/evaluation/312377-1172587700/instance-312377-1172587700.cnf  543679496   

META MD5SUM SOLVER= a43f4f4c91c277b32a975fd145ded8eb
MD5SUM BENCH=  6a3b3e57d22696582c0456812681e53c

RANDOM SEED= 543679496

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node44.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		: 3000.261
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		: 3000.261
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:       1884776 kB
Buffers:         25540 kB
Cached:          98764 kB
SwapCached:       4012 kB
Active:          67892 kB
Inactive:        66324 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1884776 kB
SwapTotal:     4192956 kB
SwapFree:      4183252 kB
Dirty:               8 kB
Writeback:           0 kB
Mapped:          15300 kB
Slab:            22932 kB
Committed_AS:   580156 kB
PageTables:       1396 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= 66553 MiB

End job on node44 on Tue Feb 27 14:54:56 UTC 2007