Trace number 1732907

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
iPAWS 2009-03-22SAT 3.97939 3.98142

General information on the benchmark

NameCRAFTED/ramseycube/
Q3inK12.cnf
MD5SUMbcbdfe82209aa971e7a6ff7bba833b95
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark2.39164
Satisfiable
(Un)Satisfiability was proved
Number of variables66
Number of clauses831600
Sum of the clauses size9979200
Maximum clause length12
Minimum clause length12
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 50
Number of clauses of size over 5831600

Solver Data 

3.89/3.96	s SATISFIABLE
3.89/3.96	v -1 -2 3 4 -5 6 7 -8 9 -10 11 -12 13 14 -15 16 17 -18 19 -20 21 22 23 -24 -25 26 27 -28 29 30 -31 32 -33 -34 -35 -36 -37 38 -39 40 -41 -42 43 44 45 -46 -47 48 -49 50 51 52 53 -54 55 -56 -57 58 -59 -60 61 62 -63 64 -65 -66 0
3.89/3.96	c input file instance-1732907-1240784000.cnf, flips 12

Verifier Data 

OK

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1732907-1240784000/watcher-1732907-1240784000 -o /tmp/evaluation-result-1732907-1240784000/solver-1732907-1240784000 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/iPAWS HOME/instance-1732907-1240784000.cnf 1992642640 

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: 1.14 1.02 1.09 2/64 21962
/proc/meminfo: memFree=1743032/2055920 swapFree=4191900/4192956
[pid=21962] ppid=21960 vsize=335916 CPUtime=0
/proc/21962/stat : 21962 (iPAWS) R 21960 21962 21646 0 -1 4194304 484 0 0 0 0 0 0 0 18 0 1 0 106433711 343977984 468 1992294400 134512640 135114423 4294956208 18446744073709551615 134533972 0 0 4096 0 0 0 0 17 1 0 0
/proc/21962/statm: 83979 469 54 146 0 83831 0

[startup+0.049854 s]
/proc/loadavg: 1.14 1.02 1.09 2/64 21962
/proc/meminfo: memFree=1743032/2055920 swapFree=4191900/4192956
[pid=21962] ppid=21960 vsize=335916 CPUtime=0.04
/proc/21962/stat : 21962 (iPAWS) R 21960 21962 21646 0 -1 4194304 625 0 0 0 4 0 0 0 18 0 1 0 106433711 343977984 609 1992294400 134512640 135114423 4294956208 18446744073709551615 134533181 0 0 4096 0 0 0 0 17 1 0 0
/proc/21962/statm: 83979 609 54 146 0 83831 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 335916

[startup+0.101857 s]
/proc/loadavg: 1.14 1.02 1.09 2/64 21962
/proc/meminfo: memFree=1743032/2055920 swapFree=4191900/4192956
[pid=21962] ppid=21960 vsize=335916 CPUtime=0.09
/proc/21962/stat : 21962 (iPAWS) R 21960 21962 21646 0 -1 4194304 786 0 0 0 9 0 0 0 18 0 1 0 106433711 343977984 770 1992294400 134512640 135114423 4294956208 18446744073709551615 134533972 0 0 4096 0 0 0 0 17 1 0 0
/proc/21962/statm: 83979 770 54 146 0 83831 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 335916

[startup+0.301873 s]
/proc/loadavg: 1.14 1.02 1.09 2/64 21962
/proc/meminfo: memFree=1743032/2055920 swapFree=4191900/4192956
[pid=21962] ppid=21960 vsize=335916 CPUtime=0.29
/proc/21962/stat : 21962 (iPAWS) R 21960 21962 21646 0 -1 4194304 1414 0 0 0 29 0 0 0 19 0 1 0 106433711 343977984 1398 1992294400 134512640 135114423 4294956208 18446744073709551615 134533972 0 0 4096 0 0 0 0 17 1 0 0
/proc/21962/statm: 83979 1398 54 146 0 83831 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 335916

[startup+0.701908 s]
/proc/loadavg: 1.14 1.02 1.09 2/64 21962
/proc/meminfo: memFree=1743032/2055920 swapFree=4191900/4192956
[pid=21962] ppid=21960 vsize=335916 CPUtime=0.69
/proc/21962/stat : 21962 (iPAWS) R 21960 21962 21646 0 -1 4194304 2666 0 0 0 68 1 0 0 23 0 1 0 106433711 343977984 2650 1992294400 134512640 135114423 4294956208 18446744073709551615 134533148 0 0 4096 0 0 0 0 17 1 0 0
/proc/21962/statm: 83979 2651 54 146 0 83831 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 335916

[startup+1.50198 s]
/proc/loadavg: 1.14 1.02 1.09 2/65 21963
/proc/meminfo: memFree=1728816/2055920 swapFree=4191900/4192956
[pid=21962] ppid=21960 vsize=351548 CPUtime=1.49
/proc/21962/stat : 21962 (iPAWS) R 21960 21962 21646 0 -1 4194304 5170 0 0 0 147 2 0 0 25 0 1 0 106433711 359985152 5154 1992294400 134512640 135114423 4294956208 18446744073709551615 134533972 0 0 4096 0 0 0 0 17 1 0 0
/proc/21962/statm: 87887 5154 54 146 0 87739 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 351548

[startup+3.10112 s]
/proc/loadavg: 1.14 1.02 1.09 2/65 21963
/proc/meminfo: memFree=1714864/2055920 swapFree=4191900/4192956
[pid=21962] ppid=21960 vsize=367180 CPUtime=3.09
/proc/21962/stat : 21962 (iPAWS) R 21960 21962 21646 0 -1 4194304 10229 0 0 0 304 5 0 0 25 0 1 0 106433711 375992320 10213 1992294400 134512640 135114423 4294956208 18446744073709551615 134615614 0 0 4096 0 0 0 0 17 1 0 0
/proc/21962/statm: 91795 10213 54 146 0 91647 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 367180

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

[startup+3.50115 s]
/proc/loadavg: 1.12 1.02 1.09 2/65 21963
/proc/meminfo: memFree=1700848/2055920 swapFree=4191900/4192956
[pid=21962] ppid=21960 vsize=367180 CPUtime=3.49
/proc/21962/stat : 21962 (iPAWS) R 21960 21962 21646 0 -1 4194304 11505 0 0 0 343 6 0 0 25 0 1 0 106433711 375992320 11489 1992294400 134512640 135114423 4294956208 18446744073709551615 134533972 0 0 4096 0 0 0 0 17 1 0 0
/proc/21962/statm: 91795 11489 54 146 0 91647 0
Current children cumulated CPU time (s) 3.49
Current children cumulated vsize (KiB) 367180

[startup+3.90119 s]
/proc/loadavg: 1.12 1.02 1.09 2/65 21963
/proc/meminfo: memFree=1700848/2055920 swapFree=4191900/4192956
[pid=21962] ppid=21960 vsize=414076 CPUtime=3.89
/proc/21962/stat : 21962 (iPAWS) R 21960 21962 21646 0 -1 4194304 24590 0 0 0 379 10 0 0 25 0 1 0 106433711 424013824 24574 1992294400 134512640 135114423 4294956208 18446744073709551615 134529010 0 0 4096 0 0 0 0 17 1 0 0
/proc/21962/statm: 103519 24577 56 146 0 103371 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 414076

Child status: 0
Real time (s): 3.98142
CPU time (s): 3.97939
CPU user time (s): 3.84742
CPU system time (s): 0.131979
CPU usage (%): 99.9491
Max. virtual memory (cumulated for all children) (KiB): 414076

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.84741
system time used= 0.131979
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 27271
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= 7

runsolver used 0.004999 second user time and 0.015997 second system time

The end

Launcher Data 

Begin job on node15 at 2009-04-27 00:13:23
IDJOB=1732907
IDBENCH=71130
IDSOLVER=516
FILE ID=node15/1732907-1240784000
PBS_JOBID= 9187252
Free space on /tmp= 66236 MiB

SOLVER NAME= iPAWS 2009-03-22
BENCH NAME= SAT09/CRAFTED/ramseycube/Q3inK12.cnf
COMMAND LINE= HOME/iPAWS BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1732907-1240784000/watcher-1732907-1240784000 -o /tmp/evaluation-result-1732907-1240784000/solver-1732907-1240784000 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/iPAWS HOME/instance-1732907-1240784000.cnf 1992642640

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

MD5SUM BENCH= bcbdfe82209aa971e7a6ff7bba833b95
RANDOM SEED=1992642640

node15.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		: 3000.220
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	: 5931.00
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		: 3000.220
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:       1743448 kB
Buffers:         35784 kB
Cached:         208428 kB
SwapCached:        384 kB
Active:         114096 kB
Inactive:       143444 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1743448 kB
SwapTotal:     4192956 kB
SwapFree:      4191900 kB
Dirty:           35388 kB
Writeback:           0 kB
Mapped:          21764 kB
Slab:            40880 kB
Committed_AS:   385052 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= 66232 MiB
End job on node15 at 2009-04-27 00:13:27