Trace number 1631073

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 1.79773 1.79849

General information on the benchmark

NameRANDOM/MEDIUM/7SAT/UNKNOWN/65/
unif-k7-r89-v65-c5785-S599916448-096.cnf
MD5SUM5f04fc92392bf2bf11053ad43646135d
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.79773
Satisfiable
(Un)Satisfiability was proved
Number of variables65
Number of clauses5785
Sum of the clauses size40495
Maximum clause length7
Minimum clause length7
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 55785

Solver Data 

1.69/1.79	s SATISFIABLE
1.69/1.79	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 0
1.69/1.79	c input file instance-1631073-1240090652.cnf, flips 177339

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-1631073-1240090652/watcher-1631073-1240090652 -o /tmp/evaluation-result-1631073-1240090652/solver-1631073-1240090652 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/iPAWS HOME/instance-1631073-1240090652.cnf 1046963516 

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): 6000 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 0.94 0.97 3/64 23248
/proc/meminfo: memFree=1269184/2055920 swapFree=4192956/4192956
[pid=23248] ppid=23246 vsize=335916 CPUtime=0
/proc/23248/stat : 23248 (iPAWS) R 23246 23248 23184 0 -1 4194304 484 0 0 0 0 0 0 0 18 0 1 0 37098555 343977984 468 1992294400 134512640 135114423 4294956224 18446744073709551615 134615614 0 0 4096 0 0 0 0 17 1 0 0
/proc/23248/statm: 83979 468 54 146 0 83831 0

[startup+0.0258249 s]
/proc/loadavg: 0.91 0.94 0.97 3/64 23248
/proc/meminfo: memFree=1269184/2055920 swapFree=4192956/4192956
[pid=23248] ppid=23246 vsize=335916 CPUtime=0.01
/proc/23248/stat : 23248 (iPAWS) R 23246 23248 23184 0 -1 4194304 1045 0 0 0 1 0 0 0 18 0 1 0 37098555 343977984 1029 1992294400 134512640 135114423 4294956224 18446744073709551615 134549708 0 0 4096 0 0 0 0 17 1 0 0
/proc/23248/statm: 83979 1029 58 146 0 83831 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 335916

[startup+0.102838 s]
/proc/loadavg: 0.91 0.94 0.97 3/64 23248
/proc/meminfo: memFree=1269184/2055920 swapFree=4192956/4192956
[pid=23248] ppid=23246 vsize=335916 CPUtime=0.09
/proc/23248/stat : 23248 (iPAWS) R 23246 23248 23184 0 -1 4194304 1047 0 0 0 9 0 0 0 18 0 1 0 37098555 343977984 1031 1992294400 134512640 135114423 4294956224 18446744073709551615 134518436 0 0 4096 0 0 0 0 17 1 0 0
/proc/23248/statm: 83979 1031 58 146 0 83831 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 335916

[startup+0.302876 s]
/proc/loadavg: 0.91 0.94 0.97 3/64 23248
/proc/meminfo: memFree=1269184/2055920 swapFree=4192956/4192956
[pid=23248] ppid=23246 vsize=335916 CPUtime=0.29
/proc/23248/stat : 23248 (iPAWS) R 23246 23248 23184 0 -1 4194304 1047 0 0 0 29 0 0 0 19 0 1 0 37098555 343977984 1031 1992294400 134512640 135114423 4294956224 18446744073709551615 134514908 0 0 4096 0 0 0 0 17 1 0 0
/proc/23248/statm: 83979 1031 58 146 0 83831 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 335916

[startup+0.701954 s]
/proc/loadavg: 0.91 0.94 0.97 3/64 23248
/proc/meminfo: memFree=1269184/2055920 swapFree=4192956/4192956
[pid=23248] ppid=23246 vsize=335916 CPUtime=0.69
/proc/23248/stat : 23248 (iPAWS) R 23246 23248 23184 0 -1 4194304 1048 0 0 0 69 0 0 0 22 0 1 0 37098555 343977984 1032 1992294400 134512640 135114423 4294956224 18446744073709551615 134514872 0 0 4096 0 0 0 0 17 1 0 0
/proc/23248/statm: 83979 1032 58 146 0 83831 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 335916

[startup+1.50111 s]
/proc/loadavg: 0.91 0.94 0.97 2/65 23249
/proc/meminfo: memFree=1265208/2055920 swapFree=4192956/4192956
[pid=23248] ppid=23246 vsize=335916 CPUtime=1.49
/proc/23248/stat : 23248 (iPAWS) R 23246 23248 23184 0 -1 4194304 1048 0 0 0 149 0 0 0 25 0 1 0 37098555 343977984 1032 1992294400 134512640 135114423 4294956224 18446744073709551615 134517083 0 0 4096 0 0 0 0 17 1 0 0
/proc/23248/statm: 83979 1032 58 146 0 83831 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 335916

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

[startup+1.70115 s]
/proc/loadavg: 0.91 0.94 0.97 2/65 23249
/proc/meminfo: memFree=1265208/2055920 swapFree=4192956/4192956
[pid=23248] ppid=23246 vsize=335916 CPUtime=1.69
/proc/23248/stat : 23248 (iPAWS) R 23246 23248 23184 0 -1 4194304 1048 0 0 0 169 0 0 0 25 0 1 0 37098555 343977984 1032 1992294400 134512640 135114423 4294956224 18446744073709551615 134518515 0 0 4096 0 0 0 0 17 1 0 0
/proc/23248/statm: 83979 1032 58 146 0 83831 0
Current children cumulated CPU time (s) 1.69
Current children cumulated vsize (KiB) 335916

Child status: 0
Real time (s): 1.79849
CPU time (s): 1.79773
CPU user time (s): 1.79173
CPU system time (s): 0.005999
CPU usage (%): 99.9577
Max. virtual memory (cumulated for all children) (KiB): 335916

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.79173
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1056
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= 3

runsolver used 0.001999 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node28 at 2009-04-18 23:37:33
IDJOB=1631073
IDBENCH=70479
IDSOLVER=588
FILE ID=node28/1631073-1240090652
PBS_JOBID= 9157666
Free space on /tmp= 66348 MiB

SOLVER NAME= iPAWS 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/7SAT/UNKNOWN/65/unif-k7-r89-v65-c5785-S599916448-096.cnf
COMMAND LINE= HOME/iPAWS BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1631073-1240090652/watcher-1631073-1240090652 -o /tmp/evaluation-result-1631073-1240090652/solver-1631073-1240090652 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/iPAWS HOME/instance-1631073-1240090652.cnf 1046963516

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 5f04fc92392bf2bf11053ad43646135d
RANDOM SEED=1046963516

node28.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:       1269600 kB
Buffers:         81796 kB
Cached:         628328 kB
SwapCached:          0 kB
Active:         299432 kB
Inactive:       425336 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1269600 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:             824 kB
Writeback:           0 kB
Mapped:          24408 kB
Slab:            47352 kB
Committed_AS:   202896 kB
PageTables:       1420 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66344 MiB
End job on node28 at 2009-04-18 23:37:34