Trace number 371560

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
sapsrt 2007-02-08SAT 1.81672 1.81968

General information on the benchmark

Namerandom/OnTreshold/5SAT/v120/
unif-k5-r21.3-v120-c2556-S340864765-13.SAT.shuffled.cnf
MD5SUM1a2d4f656ef1a93a804e74aaef307a73
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.179971
Satisfiable
(Un)Satisfiability was proved
Number of variables120
Number of clauses2556
Sum of the clauses size12780
Maximum clause length5
Minimum clause length5
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 52556
Number of clauses of size over 50

Solver Data (download as text)

1.79/1.81	c 
1.79/1.81	c UBCSAT version 1.1.0rr
1.79/1.81	c 
1.79/1.81	c http://www.satlib.org/ubcsat
1.79/1.81	c 
1.79/1.81	c ubcsat -h for help
1.79/1.81	c 
1.79/1.81	c  -runs 1 
1.79/1.81	c  -cutoff 4294967295 
1.79/1.81	c  -timeout 0.000000 
1.79/1.81	c  -gtimeout 0.000000 
1.79/1.81	c  -noimprove 0 
1.79/1.81	c  -target 0 
1.79/1.81	c  -wtarget 0.000000 
1.79/1.81	c  -seed 261403842 
1.79/1.81	c  -solve 0 
1.79/1.81	c  -find,-numsol 0 
1.79/1.81	c  -findunique 0 
1.79/1.81	c  -srestart 0 
1.79/1.81	c  -prestart 0.000000 
1.79/1.81	c  -drestart 0 
1.79/1.81	c 
1.79/1.81	c  -alpha 1.126000 
1.79/1.81	c  -rho 0.666000 
1.79/1.81	c  -ps 0.033000 
1.79/1.81	c  -wp 0.060000 
1.79/1.81	c  -sapsthresh -0.100000 
1.79/1.81	c 
1.79/1.81	s SATISFIABLE
1.79/1.81	v  1 -2 3 -4 5 6 7 -8 9 10
1.79/1.81	v  11 -12 13 14 15 16 17 -18 -19 20
1.79/1.81	v  21 -22 23 -24 -25 -26 27 -28 -29 -30
1.79/1.81	v  31 -32 33 -34 -35 -36 -37 38 39 -40
1.79/1.81	v  -41 -42 43 -44 -45 46 47 48 -49 -50
1.79/1.81	v  -51 52 -53 -54 55 -56 57 58 59 60
1.79/1.81	v  61 62 -63 64 65 66 -67 -68 69 70
1.79/1.81	v  71 -72 73 -74 -75 76 -77 -78 79 -80
1.79/1.81	v  81 82 83 84 85 -86 -87 -88 89 -90
1.79/1.81	v  91 92 -93 94 95 96 -97 -98 -99 -100
1.79/1.81	v  -101 -102 103 104 -105 106 -107 -108 109 110
1.79/1.81	v  -111 112 113 -114 -115 116 -117 -118 -119 120
1.79/1.81	v  0

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node51/watcher-371560-1177543886 -o ROOT/results/node51/solver-371560-1177543886 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/371560-1177543886/sapsrt /tmp/evaluation/371560-1177543886/instance-371560-1177543886.cnf 261403842 

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: 0.07 0.55 0.64 3/64 7709
/proc/meminfo: memFree=1795832/2055920 swapFree=4183264/4192956
[pid=7709] ppid=7707 vsize=5160 CPUtime=0
/proc/7709/stat : 7709 (sapsrt) R 7707 7709 7583 0 -1 4194304 155 0 0 0 0 0 0 0 18 0 1 0 109233689 5283840 141 18446744073709551615 134512640 135167692 4294956656 18446744073709551615 134799309 0 0 4096 0 0 0 0 17 1 0 0
/proc/7709/statm: 1290 142 78 159 0 1129 0

[startup+0.0640251 s]
/proc/loadavg: 0.07 0.55 0.64 3/64 7709
/proc/meminfo: memFree=1795832/2055920 swapFree=4183264/4192956
[pid=7709] ppid=7707 vsize=5156 CPUtime=0.06
/proc/7709/stat : 7709 (sapsrt) R 7707 7709 7583 0 -1 4194304 195 0 0 0 6 0 0 0 18 0 1 0 109233689 5279744 180 18446744073709551615 134512640 135167692 4294956656 18446744073709551615 134714545 0 0 4096 0 0 0 0 17 1 0 0
/proc/7709/statm: 1289 180 83 159 0 1128 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 5156

[startup+0.102028 s]
/proc/loadavg: 0.07 0.55 0.64 3/64 7709
/proc/meminfo: memFree=1795832/2055920 swapFree=4183264/4192956
[pid=7709] ppid=7707 vsize=5156 CPUtime=0.09
/proc/7709/stat : 7709 (sapsrt) R 7707 7709 7583 0 -1 4194304 195 0 0 0 9 0 0 0 18 0 1 0 109233689 5279744 180 18446744073709551615 134512640 135167692 4294956656 18446744073709551615 134714869 0 0 4096 0 0 0 0 17 1 0 0
/proc/7709/statm: 1289 180 83 159 0 1128 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5156

[startup+0.302046 s]
/proc/loadavg: 0.07 0.55 0.64 3/64 7709
/proc/meminfo: memFree=1795832/2055920 swapFree=4183264/4192956
[pid=7709] ppid=7707 vsize=5156 CPUtime=0.29
/proc/7709/stat : 7709 (sapsrt) R 7707 7709 7583 0 -1 4194304 195 0 0 0 29 0 0 0 19 0 1 0 109233689 5279744 180 18446744073709551615 134512640 135167692 4294956656 18446744073709551615 134714666 0 0 4096 0 0 0 0 17 1 0 0
/proc/7709/statm: 1289 180 83 159 0 1128 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 5156

[startup+0.701081 s]
/proc/loadavg: 0.07 0.55 0.64 3/64 7709
/proc/meminfo: memFree=1795832/2055920 swapFree=4183264/4192956
[pid=7709] ppid=7707 vsize=5156 CPUtime=0.69
/proc/7709/stat : 7709 (sapsrt) R 7707 7709 7583 0 -1 4194304 195 0 0 0 69 0 0 0 22 0 1 0 109233689 5279744 180 18446744073709551615 134512640 135167692 4294956656 18446744073709551615 134550734 0 0 4096 0 0 0 0 17 1 0 0
/proc/7709/statm: 1289 180 83 159 0 1128 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5156

[startup+1.50115 s]
/proc/loadavg: 0.07 0.55 0.64 2/65 7710
/proc/meminfo: memFree=1795504/2055920 swapFree=4183264/4192956
[pid=7709] ppid=7707 vsize=5156 CPUtime=1.49
/proc/7709/stat : 7709 (sapsrt) R 7707 7709 7583 0 -1 4194304 195 0 0 0 149 0 0 0 25 0 1 0 109233689 5279744 180 18446744073709551615 134512640 135167692 4294956656 18446744073709551615 134549641 0 0 4096 0 0 0 0 17 1 0 0
/proc/7709/statm: 1289 180 83 159 0 1128 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5156

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

[startup+1.70117 s]
/proc/loadavg: 0.07 0.55 0.64 2/65 7710
/proc/meminfo: memFree=1795504/2055920 swapFree=4183264/4192956
[pid=7709] ppid=7707 vsize=5156 CPUtime=1.69
/proc/7709/stat : 7709 (sapsrt) R 7707 7709 7583 0 -1 4194304 195 0 0 0 169 0 0 0 25 0 1 0 109233689 5279744 180 18446744073709551615 134512640 135167692 4294956656 18446744073709551615 134715001 0 0 4096 0 0 0 0 17 1 0 0
/proc/7709/statm: 1289 180 83 159 0 1128 0
Current children cumulated CPU time (s) 1.69
Current children cumulated vsize (KiB) 5156

[startup+1.80118 s]
/proc/loadavg: 0.07 0.55 0.64 2/65 7710
/proc/meminfo: memFree=1795504/2055920 swapFree=4183264/4192956
[pid=7709] ppid=7707 vsize=5156 CPUtime=1.79
/proc/7709/stat : 7709 (sapsrt) R 7707 7709 7583 0 -1 4194304 195 0 0 0 179 0 0 0 25 0 1 0 109233689 5279744 180 18446744073709551615 134512640 135167692 4294956656 18446744073709551615 134714289 0 0 4096 0 0 0 0 17 1 0 0
/proc/7709/statm: 1289 180 83 159 0 1128 0
Current children cumulated CPU time (s) 1.79
Current children cumulated vsize (KiB) 5156

Child status: 10
Real time (s): 1.81968
CPU time (s): 1.81672
CPU user time (s): 1.81472
CPU system time (s): 0.001999
CPU usage (%): 99.8376
Max. virtual memory (cumulated for all children) (KiB): 5156

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.81472
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 210
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= 2

runsolver used 0.005999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node51 on Wed Apr 25 23:31:26 UTC 2007

IDJOB= 371560
IDBENCH= 19857
IDSOLVER= 187
FILE ID= node51/371560-1177543886

PBS_JOBID= 4695943

Free space on /tmp= 66460 MiB

SOLVER NAME= sapsrt 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/5SAT/v120/unif-k5-r21.3-v120-c2556-S340864765-13.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/371560-1177543886/sapsrt /tmp/evaluation/371560-1177543886/instance-371560-1177543886.cnf  261403842       
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node51/watcher-371560-1177543886 -o ROOT/results/node51/solver-371560-1177543886 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/371560-1177543886/sapsrt /tmp/evaluation/371560-1177543886/instance-371560-1177543886.cnf  261403842       

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  1a2d4f656ef1a93a804e74aaef307a73

RANDOM SEED= 261403842

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node51.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		: 3000.223
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		: 3000.223
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:       1796304 kB
Buffers:          8272 kB
Cached:         109000 kB
SwapCached:       3428 kB
Active:         104432 kB
Inactive:        99940 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1796304 kB
SwapTotal:     4192956 kB
SwapFree:      4183264 kB
Dirty:            2212 kB
Writeback:           0 kB
Mapped:          15272 kB
Slab:            41296 kB
Committed_AS:  3797000 kB
PageTables:       1408 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= 66460 MiB

End job on node51 on Wed Apr 25 23:31:28 UTC 2007