Trace number 1723733

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
HydraSAT 2009-03-22-BaseUNSAT 2.17967 2.18091

General information on the benchmark

Namemanol-pipe-g6bi.cnf
MD5SUM276c05fafaa0b870834db9baaef6afca
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.883865
Satisfiable
(Un)Satisfiability was proved
Number of variables23891
Number of clauses69895
Sum of the clauses size163087
Maximum clause length3
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 246596
Number of clauses of size 323298
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

2.10/2.17	
2.10/2.17	c decisions : 142179
2.10/2.17	c conflicts : 14547
2.10/2.17	c Memory limit 1620 MiB
2.10/2.17	c RANDOM SEED: 187375731
2.10/2.17	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1723733-1240688393/watcher-1723733-1240688393 -o /tmp/evaluation-result-1723733-1240688393/solver-1723733-1240688393 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/hydrasat HOME/instance-1723733-1240688393.cnf -rs 187375731 -co memory_limit 1800 

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): 1800 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: 1.02 1.02 1.00 3/64 18390
/proc/meminfo: memFree=1651128/2055920 swapFree=4181132/4192956
[pid=18390] ppid=18388 vsize=2044 CPUtime=0
/proc/18390/stat : 18390 (hydrasat) R 18388 18390 17853 0 -1 4194304 222 0 0 0 0 0 0 0 18 0 1 0 96872317 2093056 206 1992294400 134512640 135997824 4294956160 18446744073709551615 135371350 0 0 4096 1 0 0 0 17 1 0 0
/proc/18390/statm: 511 206 151 362 0 146 0

[startup+0.092946 s]
/proc/loadavg: 1.02 1.02 1.00 3/64 18390
/proc/meminfo: memFree=1651128/2055920 swapFree=4181132/4192956
[pid=18390] ppid=18388 vsize=5592 CPUtime=0.08
/proc/18390/stat : 18390 (hydrasat) R 18388 18390 17853 0 -1 4194304 1198 0 0 0 8 0 0 0 18 0 1 0 96872317 5726208 1182 1992294400 134512640 135997824 4294956160 18446744073709551615 135371350 0 0 4096 1 0 0 0 17 1 0 0
/proc/18390/statm: 1398 1183 155 362 0 1033 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5592

[startup+0.101945 s]
/proc/loadavg: 1.02 1.02 1.00 3/64 18390
/proc/meminfo: memFree=1651128/2055920 swapFree=4181132/4192956
[pid=18390] ppid=18388 vsize=5988 CPUtime=0.09
/proc/18390/stat : 18390 (hydrasat) R 18388 18390 17853 0 -1 4194304 1278 0 0 0 9 0 0 0 18 0 1 0 96872317 6131712 1262 1992294400 134512640 135997824 4294956160 18446744073709551615 135371350 0 0 4096 1 0 0 0 17 1 0 0
/proc/18390/statm: 1497 1263 155 362 0 1132 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5988

[startup+0.301977 s]
/proc/loadavg: 1.02 1.02 1.00 3/64 18390
/proc/meminfo: memFree=1651128/2055920 swapFree=4181132/4192956
[pid=18390] ppid=18388 vsize=10176 CPUtime=0.29
/proc/18390/stat : 18390 (hydrasat) R 18388 18390 17853 0 -1 4194304 2390 0 0 0 29 0 0 0 19 0 1 0 96872317 10420224 2258 1992294400 134512640 135997824 4294956160 18446744073709551615 135371350 0 0 4096 1 0 0 0 17 1 0 0
/proc/18390/statm: 2544 2258 159 362 0 2179 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 10176

[startup+0.701039 s]
/proc/loadavg: 1.02 1.02 1.00 3/64 18390
/proc/meminfo: memFree=1651128/2055920 swapFree=4181132/4192956
[pid=18390] ppid=18388 vsize=17008 CPUtime=0.69
/proc/18390/stat : 18390 (hydrasat) R 18388 18390 17853 0 -1 4194304 4318 0 0 0 68 1 0 0 22 0 1 0 96872317 17416192 3916 1992294400 134512640 135997824 4294956160 18446744073709551615 134757777 0 0 4096 1 0 0 0 17 1 0 0
/proc/18390/statm: 4252 3916 174 362 0 3887 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 17008

[startup+1.50117 s]
/proc/loadavg: 1.02 1.02 1.00 2/65 18391
/proc/meminfo: memFree=1635952/2055920 swapFree=4181132/4192956
[pid=18390] ppid=18388 vsize=17404 CPUtime=1.49
/proc/18390/stat : 18390 (hydrasat) R 18388 18390 17853 0 -1 4194304 4391 0 0 0 148 1 0 0 25 0 1 0 96872317 17821696 3989 1992294400 134512640 135997824 4294956160 18446744073709551615 134683535 0 0 4096 1 0 0 0 17 1 0 0
/proc/18390/statm: 4351 3989 174 362 0 3986 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 17404

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

[startup+1.90123 s]
/proc/loadavg: 1.02 1.02 1.00 2/65 18391
/proc/meminfo: memFree=1635952/2055920 swapFree=4181132/4192956
[pid=18390] ppid=18388 vsize=17404 CPUtime=1.89
/proc/18390/stat : 18390 (hydrasat) R 18388 18390 17853 0 -1 4194304 4423 0 0 0 188 1 0 0 25 0 1 0 96872317 17821696 4021 1992294400 134512640 135997824 4294956160 18446744073709551615 135204304 0 0 4096 1 0 0 0 17 1 0 0
/proc/18390/statm: 4351 4021 174 362 0 3986 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 17404

[startup+2.10126 s]
/proc/loadavg: 1.02 1.02 1.00 2/65 18391
/proc/meminfo: memFree=1635504/2055920 swapFree=4181132/4192956
[pid=18390] ppid=18388 vsize=17536 CPUtime=2.1
/proc/18390/stat : 18390 (hydrasat) R 18388 18390 17853 0 -1 4194304 4441 0 0 0 209 1 0 0 25 0 1 0 96872317 17956864 4039 1992294400 134512640 135997824 4294956160 18446744073709551615 134590470 0 0 4096 1 0 0 0 17 1 0 0
/proc/18390/statm: 4384 4039 174 362 0 4019 0
Current children cumulated CPU time (s) 2.1
Current children cumulated vsize (KiB) 17536

Child status: 20
Real time (s): 2.18091
CPU time (s): 2.17967
CPU user time (s): 2.16467
CPU system time (s): 0.014997
CPU usage (%): 99.9431
Max. virtual memory (cumulated for all children) (KiB): 17536

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.16467
system time used= 0.014997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4501
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= 2
involuntary context switches= 4

runsolver used 0.004999 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node26 at 2009-04-25 21:39:53
IDJOB=1723733
IDBENCH=71734
IDSOLVER=520
FILE ID=node26/1723733-1240688393
PBS_JOBID= 9186662
Free space on /tmp= 66032 MiB

SOLVER NAME= HydraSAT 2009-03-22-Base
BENCH NAME= SAT_RACE06/manol-pipe-g6bi.cnf
COMMAND LINE= DIR/hydrasat BENCHNAME -rs RANDOMSEED -co memory_limit MEMLIMIT
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1723733-1240688393/watcher-1723733-1240688393 -o /tmp/evaluation-result-1723733-1240688393/solver-1723733-1240688393 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/hydrasat HOME/instance-1723733-1240688393.cnf -rs 187375731 -co memory_limit 1800

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 276c05fafaa0b870834db9baaef6afca
RANDOM SEED=187375731

node26.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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:       1651608 kB
Buffers:         51292 kB
Cached:         280364 kB
SwapCached:       5760 kB
Active:         138180 kB
Inactive:       201800 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1651608 kB
SwapTotal:     4192956 kB
SwapFree:      4181132 kB
Dirty:            2568 kB
Writeback:           0 kB
Mapped:          13584 kB
Slab:            50416 kB
Committed_AS:   311432 kB
PageTables:       1376 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= 66028 MiB
End job on node26 at 2009-04-25 21:39:56