Trace number 297014

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
Hybrid1 2007-02-08SAT 12.5281 12.5327

General information on the benchmark

Namerandom/OnTreshold/7SAT/v75/
unif-k7-r89-v75-c6675-S1299158672-14.SAT.shuffled.cnf
MD5SUMbb020a272b82c40a137247ab0662fc0e
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark6.62399
Satisfiable
(Un)Satisfiability was proved
Number of variables75
Number of clauses6675
Sum of the clauses size46725
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 56675

Solver Data (download as text)

12.49/12.53	c try 1 flip j 762258
12.49/12.53	c A solution is found
12.49/12.53	s SATISFIABLE
12.49/12.53	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 67 68 69 -70 -71 72 -73 74 75 
12.49/12.53	v 0 
12.49/12.53	c Done (mycputime is 0.001 seconds)

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/node4/watcher-297014-1171831236 -o ROOT/results/node4/solver-297014-1171831236 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/297014-1171831236/Hybrid1 /tmp/evaluation/297014-1171831236/instance-297014-1171831236.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: 0.96 0.98 0.97 3/77 23681
/proc/meminfo: memFree=991392/2055920 swapFree=4192812/4192956
[pid=23681] ppid=23679 vsize=244720 CPUtime=0
/proc/23681/stat : 23681 (Hybrid1) R 23679 23681 23151 0 -1 4194304 94 0 0 0 0 0 0 0 18 0 1 0 203078484 250593280 78 18446744073709551615 134512640 134935932 4294956624 18446744073709551615 134702011 0 0 4096 0 0 0 0 17 1 0 0
/proc/23681/statm: 61180 78 39 103 0 60684 0

[startup+0.107619 s]
/proc/loadavg: 0.96 0.98 0.97 3/77 23681
/proc/meminfo: memFree=991392/2055920 swapFree=4192812/4192956
[pid=23681] ppid=23679 vsize=245508 CPUtime=0.1
/proc/23681/stat : 23681 (Hybrid1) R 23679 23681 23151 0 -1 4194304 322 0 0 0 10 0 0 0 18 0 1 0 203078484 251400192 305 18446744073709551615 134512640 134935932 4294956624 18446744073709551615 134523685 0 0 4096 0 0 0 0 17 1 0 0
/proc/23681/statm: 61377 305 40 103 0 60881 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 245508

[startup+0.515658 s]
/proc/loadavg: 0.96 0.98 0.97 3/77 23681
/proc/meminfo: memFree=991392/2055920 swapFree=4192812/4192956
[pid=23681] ppid=23679 vsize=245508 CPUtime=0.51
/proc/23681/stat : 23681 (Hybrid1) R 23679 23681 23151 0 -1 4194304 322 0 0 0 51 0 0 0 21 0 1 0 203078484 251400192 305 18446744073709551615 134512640 134935932 4294956624 18446744073709551615 134523517 0 0 4096 0 0 0 0 17 1 0 0
/proc/23681/statm: 61377 305 40 103 0 60881 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 245508

[startup+1.33574 s]
/proc/loadavg: 0.96 0.98 0.97 2/78 23682
/proc/meminfo: memFree=990232/2055920 swapFree=4192812/4192956
[pid=23681] ppid=23679 vsize=245508 CPUtime=1.33
/proc/23681/stat : 23681 (Hybrid1) R 23679 23681 23151 0 -1 4194304 322 0 0 0 133 0 0 0 25 0 1 0 203078484 251400192 305 18446744073709551615 134512640 134935932 4294956624 18446744073709551615 134523497 0 0 4096 0 0 0 0 17 1 0 0
/proc/23681/statm: 61377 305 40 103 0 60881 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 245508

[startup+2.97289 s]
/proc/loadavg: 0.97 0.98 0.97 2/78 23682
/proc/meminfo: memFree=990104/2055920 swapFree=4192812/4192956
[pid=23681] ppid=23679 vsize=247192 CPUtime=2.97
/proc/23681/stat : 23681 (Hybrid1) R 23679 23681 23151 0 -1 4194304 408 0 0 0 297 0 0 0 25 0 1 0 203078484 253124608 388 18446744073709551615 134512640 134935932 4294956624 18446744073709551615 134552599 0 0 4096 0 0 0 0 17 1 0 0
/proc/23681/statm: 61798 388 44 103 0 61302 0
Current children cumulated CPU time (s) 2.97
Current children cumulated vsize (KiB) 247192

[startup+6.25321 s]
/proc/loadavg: 0.97 0.98 0.97 2/78 23682
/proc/meminfo: memFree=989400/2055920 swapFree=4192812/4192956
[pid=23681] ppid=23679 vsize=247192 CPUtime=6.25
/proc/23681/stat : 23681 (Hybrid1) R 23679 23681 23151 0 -1 4194304 408 0 0 0 625 0 0 0 25 0 1 0 203078484 253124608 388 18446744073709551615 134512640 134935932 4294956624 18446744073709551615 134545125 0 0 4096 0 0 0 0 17 1 0 0
/proc/23681/statm: 61798 388 44 103 0 61302 0
Current children cumulated CPU time (s) 6.25
Current children cumulated vsize (KiB) 247192

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

[startup+6.55924 s]
/proc/loadavg: 0.97 0.98 0.97 2/78 23682
/proc/meminfo: memFree=989400/2055920 swapFree=4192812/4192956
[pid=23681] ppid=23679 vsize=247192 CPUtime=6.55
/proc/23681/stat : 23681 (Hybrid1) R 23679 23681 23151 0 -1 4194304 408 0 0 0 655 0 0 0 25 0 1 0 203078484 253124608 388 18446744073709551615 134512640 134935932 4294956624 18446744073709551615 134544814 0 0 4096 0 0 0 0 17 1 0 0
/proc/23681/statm: 61798 388 44 103 0 61302 0
Current children cumulated CPU time (s) 6.55
Current children cumulated vsize (KiB) 247192

[startup+9.83555 s]
/proc/loadavg: 0.97 0.98 0.97 2/78 23682
/proc/meminfo: memFree=989464/2055920 swapFree=4192812/4192956
[pid=23681] ppid=23679 vsize=247192 CPUtime=9.83
/proc/23681/stat : 23681 (Hybrid1) R 23679 23681 23151 0 -1 4194304 408 0 0 0 983 0 0 0 25 0 1 0 203078484 253124608 388 18446744073709551615 134512640 134935932 4294956624 18446744073709551615 134551180 0 0 4096 0 0 0 0 17 1 0 0
/proc/23681/statm: 61798 388 44 103 0 61302 0
Current children cumulated CPU time (s) 9.83
Current children cumulated vsize (KiB) 247192

[startup+11.4767 s]
/proc/loadavg: 0.97 0.98 0.97 2/78 23682
/proc/meminfo: memFree=989464/2055920 swapFree=4192812/4192956
[pid=23681] ppid=23679 vsize=247192 CPUtime=11.47
/proc/23681/stat : 23681 (Hybrid1) R 23679 23681 23151 0 -1 4194304 408 0 0 0 1147 0 0 0 25 0 1 0 203078484 253124608 388 18446744073709551615 134512640 134935932 4294956624 18446744073709551615 134551505 0 0 4096 0 0 0 0 17 1 0 0
/proc/23681/statm: 61798 388 44 103 0 61302 0
Current children cumulated CPU time (s) 11.47
Current children cumulated vsize (KiB) 247192

[startup+12.2968 s]
/proc/loadavg: 0.97 0.98 0.97 2/78 23682
/proc/meminfo: memFree=989464/2055920 swapFree=4192812/4192956
[pid=23681] ppid=23679 vsize=247192 CPUtime=12.29
/proc/23681/stat : 23681 (Hybrid1) R 23679 23681 23151 0 -1 4194304 408 0 0 0 1229 0 0 0 25 0 1 0 203078484 253124608 388 18446744073709551615 134512640 134935932 4294956624 18446744073709551615 134551583 0 0 4096 0 0 0 0 17 1 0 0
/proc/23681/statm: 61798 388 44 103 0 61302 0
Current children cumulated CPU time (s) 12.29
Current children cumulated vsize (KiB) 247192

[startup+12.5048 s]
/proc/loadavg: 0.97 0.98 0.97 2/78 23682
/proc/meminfo: memFree=989464/2055920 swapFree=4192812/4192956
[pid=23681] ppid=23679 vsize=247192 CPUtime=12.49
/proc/23681/stat : 23681 (Hybrid1) R 23679 23681 23151 0 -1 4194304 408 0 0 0 1249 0 0 0 25 0 1 0 203078484 253124608 388 18446744073709551615 134512640 134935932 4294956624 18446744073709551615 134551430 0 0 4096 0 0 0 0 17 1 0 0
/proc/23681/statm: 61798 388 44 103 0 61302 0
Current children cumulated CPU time (s) 12.49
Current children cumulated vsize (KiB) 247192

Child status: 10
Real time (s): 12.5327
CPU time (s): 12.5281
CPU user time (s): 12.5241
CPU system time (s): 0.003999
CPU usage (%): 99.9635
Max. virtual memory (cumulated for all children) (KiB): 247192

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 12.5241
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 421
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= 18

runsolver used 0.016997 second user time and 0.033994 second system time

The end

Launcher Data (download as text)

Begin job on node4 on Sun Feb 18 20:40:36 UTC 2007

IDJOB= 297014
IDBENCH= 19951
IDSOLVER= 115
FILE ID= node4/297014-1171831236

PBS_JOBID= 3839373

Free space on /tmp= 66547 MiB

SOLVER NAME= Hybrid1 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/7SAT/v75/unif-k7-r89-v75-c6675-S1299158672-14.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/297014-1171831236/Hybrid1 /tmp/evaluation/297014-1171831236/instance-297014-1171831236.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node4/watcher-297014-1171831236 -o ROOT/results/node4/solver-297014-1171831236 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/297014-1171831236/Hybrid1 /tmp/evaluation/297014-1171831236/instance-297014-1171831236.cnf            

META MD5SUM SOLVER= 4ad8950502569bcbd9dc3ae819b6eefe
MD5SUM BENCH=  bb020a272b82c40a137247ab0662fc0e

RANDOM SEED= 418580025

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node4.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		: 3000.231
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		: 3000.231
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:        991800 kB
Buffers:         57828 kB
Cached:         869624 kB
SwapCached:          0 kB
Active:         356300 kB
Inactive:       630864 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        991800 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            6292 kB
Writeback:           0 kB
Mapped:          78584 kB
Slab:            62428 kB
Committed_AS:   885284 kB
PageTables:       1768 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= 66547 MiB

End job on node4 on Sun Feb 18 20:40:49 UTC 2007