Trace number 318741

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
picosat 535UNSAT 6.37903 6.38383

General information on the benchmark

Nameindustrial/babic/hsatv17/
hsat_vc11935.cnf
MD5SUM9245c5dfb87125ec2a46c4c41e4e2b03
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.02984
Satisfiable
(Un)Satisfiability was proved
Number of variables179140
Number of clauses509032
Sum of the clauses size1311108
Maximum clause length3
Minimum clause length1
Number of clauses of size 121402
Number of clauses of size 2173184
Number of clauses of size 3314446
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

6.29/6.38	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.1 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node61/watcher-318741-1176321676 -o ROOT/results/node61/solver-318741-1176321676 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/318741-1176321676/picosat /tmp/evaluation/318741-1176321676/instance-318741-1176321676.cnf 

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): 2400 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: 0.91 0.95 0.97 3/70 7818
/proc/meminfo: memFree=1496120/2055920 swapFree=4192812/4192956
[pid=7818] ppid=7816 vsize=888 CPUtime=0
/proc/7818/stat : 7818 (picosat) R 7816 7818 6839 0 -1 4194304 134 0 0 0 0 0 0 0 18 0 1 0 44131297 909312 119 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/7818/statm: 222 119 40 102 0 117 0

[startup+0.0703219 s]
/proc/loadavg: 0.91 0.95 0.97 3/70 7818
/proc/meminfo: memFree=1496120/2055920 swapFree=4192812/4192956
[pid=7818] ppid=7816 vsize=8916 CPUtime=0.06
/proc/7818/stat : 7818 (picosat) R 7816 7818 6839 0 -1 4194304 1370 0 0 0 3 3 0 0 18 0 1 0 44131297 9129984 1323 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134526214 0 0 4096 0 0 0 0 17 1 0 0
/proc/7818/statm: 2229 1324 40 102 0 2124 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 8916

[startup+0.101322 s]
/proc/loadavg: 0.91 0.95 0.97 3/70 7818
/proc/meminfo: memFree=1496120/2055920 swapFree=4192812/4192956
[pid=7818] ppid=7816 vsize=8916 CPUtime=0.09
/proc/7818/stat : 7818 (picosat) R 7816 7818 6839 0 -1 4194304 2020 0 0 0 5 4 0 0 18 0 1 0 44131297 9129984 1973 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/7818/statm: 2229 1974 40 102 0 2124 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8916

[startup+0.30134 s]
/proc/loadavg: 0.91 0.95 0.97 3/70 7818
/proc/meminfo: memFree=1496120/2055920 swapFree=4192812/4192956
[pid=7818] ppid=7816 vsize=17644 CPUtime=0.29
/proc/7818/stat : 7818 (picosat) R 7816 7818 6839 0 -1 4194304 3101 0 0 0 14 15 0 0 19 0 1 0 44131297 18067456 3054 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/7818/statm: 4411 3054 40 102 0 4306 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 17644

[startup+0.701378 s]
/proc/loadavg: 0.91 0.95 0.97 3/70 7818
/proc/meminfo: memFree=1496120/2055920 swapFree=4192812/4192956
[pid=7818] ppid=7816 vsize=19092 CPUtime=0.69
/proc/7818/stat : 7818 (picosat) R 7816 7818 6839 0 -1 4194304 3468 0 0 0 33 36 0 0 22 0 1 0 44131297 19550208 3421 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/7818/statm: 4773 3421 40 102 0 4668 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 19092

[startup+1.50145 s]
/proc/loadavg: 0.91 0.95 0.97 2/71 7819
/proc/meminfo: memFree=1481136/2055920 swapFree=4192812/4192956
[pid=7818] ppid=7816 vsize=21988 CPUtime=1.49
/proc/7818/stat : 7818 (picosat) R 7816 7818 6839 0 -1 4194304 4195 0 0 0 69 80 0 0 25 0 1 0 44131297 22515712 4148 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/7818/statm: 5497 4148 40 102 0 5392 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 21988

[startup+3.10161 s]
/proc/loadavg: 0.91 0.95 0.97 2/71 7819
/proc/meminfo: memFree=1477104/2055920 swapFree=4192812/4192956
[pid=7818] ppid=7816 vsize=27912 CPUtime=3.09
/proc/7818/stat : 7818 (picosat) R 7816 7818 6839 0 -1 4194304 5653 0 0 0 141 168 0 0 25 0 1 0 44131297 28581888 5606 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/7818/statm: 6978 5606 40 102 0 6873 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 27912

[startup+6.30191 s]
/proc/loadavg: 0.92 0.95 0.97 2/71 7823
/proc/meminfo: memFree=1469232/2055920 swapFree=4192812/4192956
[pid=7818] ppid=7816 vsize=36304 CPUtime=6.29
/proc/7818/stat : 7818 (picosat) R 7816 7818 6839 0 -1 4194304 6824 0 0 0 407 222 0 0 25 0 1 0 44131297 37175296 6736 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134544818 0 0 4096 0 0 0 0 17 1 0 0
/proc/7818/statm: 9076 6736 42 102 0 8971 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 36304

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

Child status: 20
Real time (s): 6.38383
CPU time (s): 6.37903
CPU user time (s): 4.15337
CPU system time (s): 2.22566
CPU usage (%): 99.9247
Max. virtual memory (cumulated for all children) (KiB): 36304

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.15337
system time used= 2.22566
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6831
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= 26

runsolver used 0.010998 second user time and 0.018997 second system time

The end

Launcher Data (download as text)

Begin job on node61 on Wed Apr 11 20:01:17 UTC 2007

IDJOB= 318741
IDBENCH= 20462
IDSOLVER= 106
FILE ID= node61/318741-1176321676

PBS_JOBID= 4516706

Free space on /tmp= 66555 MiB

SOLVER NAME= picosat 535
BENCH NAME= HOME/pub/bench/SAT07/industrial/babic/hsatv17/hsat_vc11935.cnf
COMMAND LINE= /tmp/evaluation/318741-1176321676/picosat /tmp/evaluation/318741-1176321676/instance-318741-1176321676.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node61/watcher-318741-1176321676 -o ROOT/results/node61/solver-318741-1176321676 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/318741-1176321676/picosat /tmp/evaluation/318741-1176321676/instance-318741-1176321676.cnf            

META MD5SUM SOLVER= 1cb12d44dc66ecc4d20a168f5cfd1323
MD5SUM BENCH=  9245c5dfb87125ec2a46c4c41e4e2b03

RANDOM SEED= 817334276

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node61.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		: 3000.240
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		: 3000.240
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:       1496528 kB
Buffers:         34648 kB
Cached:         375660 kB
SwapCached:        140 kB
Active:         161016 kB
Inactive:       265688 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1496528 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:           10404 kB
Writeback:           0 kB
Mapped:          26840 kB
Slab:           118424 kB
Committed_AS:    91140 kB
PageTables:       1612 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= 66555 MiB

End job on node61 on Wed Apr 11 20:01:23 UTC 2007