Trace number 308253

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
CMUSAT BASE 2007-02-08SAT 4.5793 4.58331

General information on the benchmark

Namerandom/2+p/p0.7/v3500/
unif2p-p0.7-v3500-c9345-S1568322528-08-SAT.cnf
MD5SUMd0f9a30f8fda4c844dc97689f3035cdb
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.613906
Satisfiable
(Un)Satisfiability was proved
Number of variables3494
Number of clauses9344
Sum of the clauses size25229
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 22803
Number of clauses of size 36541
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

4.50/4.57	c Number of variables:  3500
4.50/4.57	c Number of clauses:    9344
4.50/4.57	c DBreduced=0 GV=103[0]  GL=9447[ 9344,103] Prune=320 decisions=216 restart=0 est=5.57145 DB Impl=32619[0]  
4.50/4.57	c DBreduced=0 GV=151[0]  GL=9494[ 9344,150] Prune=470 decisions=318 restart=1 est=5.82913 DB Impl=49333[0]  
4.50/4.57	c DBreduced=0 GV=226[0]  GL=9569[ 9344,225] Prune=691 decisions=464 restart=2 est=5.82864 DB Impl=75626[0]  
4.50/4.57	c DBreduced=0 GV=338[0]  GL=9681[ 9344,337] Prune=974 decisions=635 restart=3 est=5.82859 DB Impl=120603[0]  
4.50/4.57	c DBreduced=0 GV=508[0]  GL=9851[ 9344,507] Prune=1399 decisions=890 restart=4 est=5.82873 DB Impl=179352[0]  
4.50/4.57	c DBreduced=0 GV=760[0]  GL=10103[ 9344,759] Prune=1996 decisions=1235 restart=5 est=5.8286 DB Impl=268651[0]  
4.50/4.57	c DBreduced=0 GV=1140[0]  GL=10483[ 9344,1139] Prune=2865 decisions=1724 restart=6 est=5.82867 DB Impl=412871[0]  
4.50/4.57	c DBreduced=0 GV=1709[0]  GL=11052[ 9344,1708] Prune=4288 decisions=2578 restart=7 est=5.82863 DB Impl=628233[0]  
4.50/4.57	c DBreduced=0 GV=2567[0]  GL=11910[ 9344,2566] Prune=6332 decisions=3764 restart=8 est=5.82858 DB Impl=964962[0]  
4.50/4.58	c DBreduced=0 GV=3847[0]  GL=13190[ 9344,3846] Prune=9189 decisions=5341 restart=9 est=5.82883 DB Impl=1453413[0]  
4.50/4.58	c DBreduced=3 GV=5767[0]  GL=12285[ 9344,2941] Prune=13624 decisions=7856 restart=10 est=5.82897 DB Impl=2201473[0]  
4.50/4.58	c DBreduced=4 GV=8651[0]  GL=12950[ 9344,3606] Prune=20310 decisions=11658 restart=11 est=5.82881 DB Impl=3254867[0]  
4.50/4.58	c DBreduced=5 GV=12976[0]  GL=15206[ 9344,5862] Prune=30171 decisions=17194 restart=12 est=5.82892 DB Impl=4868595[0]  
4.50/4.58	c #Total time (in seconds): 4.57031
4.50/4.58	c #Memory used (in MB): 5.55078
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4.50/4.58	c 
4.50/4.58	s SATISFIABLE

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/node63/watcher-308253-1172518094 -o ROOT/results/node63/solver-308253-1172518094 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/308253-1172518094/cmusat_base /tmp/evaluation/308253-1172518094/instance-308253-1172518094.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: 0.97 0.98 1.01 3/64 8874
/proc/meminfo: memFree=1933024/2055920 swapFree=4179036/4192956
[pid=8874] ppid=8872 vsize=2652 CPUtime=0
/proc/8874/stat : 8874 (cmusat_base) R 8872 8874 8487 0 -1 4194304 237 0 0 0 0 0 0 0 18 0 1 0 271766828 2715648 219 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 134564472 0 0 4096 35 0 0 0 17 1 0 0
/proc/8874/statm: 663 219 90 241 0 419 0

[startup+0.107565 s]
/proc/loadavg: 0.97 0.98 1.01 3/64 8874
/proc/meminfo: memFree=1933024/2055920 swapFree=4179036/4192956
[pid=8874] ppid=8872 vsize=3568 CPUtime=0.1
/proc/8874/stat : 8874 (cmusat_base) R 8872 8874 8487 0 -1 4194304 483 0 0 0 10 0 0 0 18 0 1 0 271766828 3653632 465 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 134559940 0 0 4096 35 0 0 0 17 1 0 0
/proc/8874/statm: 892 465 109 241 0 648 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 3568

[startup+0.515608 s]
/proc/loadavg: 0.97 0.98 1.01 3/64 8874
/proc/meminfo: memFree=1933024/2055920 swapFree=4179036/4192956
[pid=8874] ppid=8872 vsize=4096 CPUtime=0.51
/proc/8874/stat : 8874 (cmusat_base) R 8872 8874 8487 0 -1 4194304 610 0 0 0 51 0 0 0 21 0 1 0 271766828 4194304 592 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 135064935 0 0 4096 35 0 0 0 17 1 0 0
/proc/8874/statm: 1024 592 109 241 0 780 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 4096

[startup+1.3357 s]
/proc/loadavg: 0.97 0.98 1.01 2/65 8875
/proc/meminfo: memFree=1930264/2055920 swapFree=4179036/4192956
[pid=8874] ppid=8872 vsize=4988 CPUtime=1.33
/proc/8874/stat : 8874 (cmusat_base) R 8872 8874 8487 0 -1 4194304 844 0 0 0 133 0 0 0 25 0 1 0 271766828 5107712 826 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 134560480 0 0 4096 35 0 0 0 17 1 0 0
/proc/8874/statm: 1247 826 109 241 0 1003 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 4988

[startup+2.97587 s]
/proc/loadavg: 0.97 0.98 1.01 2/65 8875
/proc/meminfo: memFree=1929880/2055920 swapFree=4179036/4192956
[pid=8874] ppid=8872 vsize=5296 CPUtime=2.96
/proc/8874/stat : 8874 (cmusat_base) R 8872 8874 8487 0 -1 4194304 927 0 0 0 296 0 0 0 25 0 1 0 271766828 5423104 909 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 134560110 0 0 4096 35 0 0 0 17 1 0 0
/proc/8874/statm: 1324 909 109 241 0 1080 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 5296

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

[startup+3.2819 s]
/proc/loadavg: 0.97 0.98 1.01 2/65 8875
/proc/meminfo: memFree=1929880/2055920 swapFree=4179036/4192956
[pid=8874] ppid=8872 vsize=5460 CPUtime=3.27
/proc/8874/stat : 8874 (cmusat_base) R 8872 8874 8487 0 -1 4194304 971 0 0 0 327 0 0 0 25 0 1 0 271766828 5591040 953 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 134559940 0 0 4096 35 0 0 0 17 1 0 0
/proc/8874/statm: 1365 953 109 241 0 1121 0
Current children cumulated CPU time (s) 3.27
Current children cumulated vsize (KiB) 5460

[startup+4.10099 s]
/proc/loadavg: 0.97 0.98 1.01 2/65 8875
/proc/meminfo: memFree=1929496/2055920 swapFree=4179036/4192956
[pid=8874] ppid=8872 vsize=5684 CPUtime=4.09
/proc/8874/stat : 8874 (cmusat_base) R 8872 8874 8487 0 -1 4194304 1029 0 0 0 409 0 0 0 25 0 1 0 271766828 5820416 1011 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 134560538 0 0 4096 35 0 0 0 17 1 0 0
/proc/8874/statm: 1421 1011 109 241 0 1177 0
Current children cumulated CPU time (s) 4.09
Current children cumulated vsize (KiB) 5684

[startup+4.50903 s]
/proc/loadavg: 0.97 0.98 1.01 2/65 8875
/proc/meminfo: memFree=1929184/2055920 swapFree=4179036/4192956
[pid=8874] ppid=8872 vsize=5684 CPUtime=4.5
/proc/8874/stat : 8874 (cmusat_base) R 8872 8874 8487 0 -1 4194304 1029 0 0 0 450 0 0 0 25 0 1 0 271766828 5820416 1011 18446744073709551615 134512640 135500113 4294956704 18446744073709551615 134559899 0 0 4096 35 0 0 0 17 1 0 0
/proc/8874/statm: 1421 1011 109 241 0 1177 0
Current children cumulated CPU time (s) 4.5
Current children cumulated vsize (KiB) 5684

Child status: 10
Real time (s): 4.58331
CPU time (s): 4.5793
CPU user time (s): 4.57131
CPU system time (s): 0.007998
CPU usage (%): 99.9127
Max. virtual memory (cumulated for all children) (KiB): 5684

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.5713
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= 1040
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= 11
involuntary context switches= 10

runsolver used 0.009998 second user time and 0.012998 second system time

The end

Launcher Data (download as text)

Begin job on node63 on Mon Feb 26 19:28:14 UTC 2007

IDJOB= 308253
IDBENCH= 20226
IDSOLVER= 120
FILE ID= node63/308253-1172518094

PBS_JOBID= 3971776

Free space on /tmp= 66558 MiB

SOLVER NAME= CMUSAT BASE 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.7/v3500/unif2p-p0.7-v3500-c9345-S1568322528-08-SAT.cnf
COMMAND LINE= /tmp/evaluation/308253-1172518094/cmusat_base /tmp/evaluation/308253-1172518094/instance-308253-1172518094.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node63/watcher-308253-1172518094 -o ROOT/results/node63/solver-308253-1172518094 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/308253-1172518094/cmusat_base /tmp/evaluation/308253-1172518094/instance-308253-1172518094.cnf            

META MD5SUM SOLVER= af990fb12f8926fdd756b397adb3b5cf
MD5SUM BENCH=  d0f9a30f8fda4c844dc97689f3035cdb

RANDOM SEED= 6646149

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node63.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		: 3000.214
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		: 3000.214
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:       1933496 kB
Buffers:         20360 kB
Cached:          61288 kB
SwapCached:       7976 kB
Active:          33928 kB
Inactive:        61556 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1933496 kB
SwapTotal:     4192956 kB
SwapFree:      4179036 kB
Dirty:            2592 kB
Writeback:           0 kB
Mapped:          15256 kB
Slab:            12936 kB
Committed_AS:   622828 kB
PageTables:       1460 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= 66558 MiB

End job on node63 on Mon Feb 26 19:28:19 UTC 2007